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63794680488 = 23347111775209
BaseRepresentation
bin111011011010011101…
…011001001010101000
320002122221221112210000
4323122131121022220
52021122414233423
645150141223000
74415614560060
oct733235311250
9202587845700
1063794680488
1125067485740
1210444861a60
136028981266
14313283c3a0
1519d596c843
hexeda7592a8

63794680488 has 320 divisors, whose sum is σ = 235882627200. Its totient is φ = 15595130880.

The previous prime is 63794680463. The next prime is 63794680511. The reversal of 63794680488 is 88408649736.

63794680488 is a `hidden beast` number, since 6 + 3 + 7 + 94 + 68 + 0 + 488 = 666.

It is a super-2 number, since 2×637946804882 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 810628 + ... + 885836.

It is an arithmetic number, because the mean of its divisors is an integer number (737133210).

Almost surely, 263794680488 is an apocalyptic number.

63794680488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63794680488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117941313600).

63794680488 is an abundant number, since it is smaller than the sum of its proper divisors (172087946712).

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

63794680488 is a wasteful number, since it uses less digits than its factorization.

63794680488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75262 (or 75249 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 63794680488 in words is "sixty-three billion, seven hundred ninety-four million, six hundred eighty thousand, four hundred eighty-eight".