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6634827768944 = 243143668946507
BaseRepresentation
bin110000010001100101010…
…0011010110010001110000
3212111021122112222120201202
41200203022203112101300
51332201111402101234
622035555305150332
71253231134342154
oct140431243262160
925437575876652
106634827768944
1121288a6340271
128b1a5a48b3a8
1339187a62a2bb
1418d1ad749064
15b78c16b477e
hex608ca8d6470

6634827768944 has 80 divisors (see below), whose sum is σ = 13580574120960. Its totient is φ = 3135203850240.

The previous prime is 6634827768931. The next prime is 6634827768967. The reversal of 6634827768944 is 4498677284366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142639739 + ... + 142686245.

It is an arithmetic number, because the mean of its divisors is an integer number (169757176512).

Almost surely, 26634827768944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6634827768944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6790287060480).

6634827768944 is an abundant number, since it is smaller than the sum of its proper divisors (6945746352016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6634827768944 is a wasteful number, since it uses less digits than its factorization.

6634827768944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53278 (or 53272 counting only the distinct ones).

The product of its digits is 2341011456, while the sum is 74.

The spelling of 6634827768944 in words is "six trillion, six hundred thirty-four billion, eight hundred twenty-seven million, seven hundred sixty-eight thousand, nine hundred forty-four".

Divisors: 1 2 4 8 16 31 43 62 86 124 172 248 344 496 688 1333 2666 5332 6689 10664 13378 21328 26756 46507 53512 93014 107024 186028 207359 287627 372056 414718 575254 744112 829436 1150508 1441717 1658872 1999801 2301016 2883434 3317744 3999602 4602032 5766868 7999204 8916437 11533736 15998408 17832874 23067472 31996816 35665748 61993831 71331496 123987662 142662992 247975324 311085323 495950648 622170646 991901296 1244341292 2488682584 4977365168 9643645013 13376668889 19287290026 26753337778 38574580052 53506675556 77149160104 107013351112 154298320208 214026702224 414676735559 829353471118 1658706942236 3317413884472 6634827768944