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42775760743661 = 1123169074153137
BaseRepresentation
bin10011011100111100000100…
…00001100010110011101101
312121110022201022110210120102
421232132002001202303231
521101314224222244121
6230550525130200445
712003306141056021
oct1156360201426355
9177408638423512
1042775760743661
11126a21098615a0
12496a28b883125
131ab397705b96a
14a7c501db4381
154e2a67ed990b
hex26e782062ced

42775760743661 has 8 divisors (see below), whose sum is σ = 48693356103744. Its totient is φ = 37196313689920.

The previous prime is 42775760743649. The next prime is 42775760743663. The reversal of 42775760743661 is 16634706757724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-42775760743661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775760743663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84537076316 + ... + 84537076821.

It is an arithmetic number, because the mean of its divisors is an integer number (6086669512968).

Almost surely, 242775760743661 is an apocalyptic number.

It is an amenable number.

42775760743661 is a deficient number, since it is larger than the sum of its proper divisors (5917595360083).

42775760743661 is a wasteful number, since it uses less digits than its factorization.

42775760743661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169074153171.

The product of its (nonzero) digits is 248935680, while the sum is 65.

The spelling of 42775760743661 in words is "forty-two trillion, seven hundred seventy-five billion, seven hundred sixty million, seven hundred forty-three thousand, six hundred sixty-one".

Divisors: 1 11 23 253 169074153137 1859815684507 3888705522151 42775760743661