6642037536759 has 12 divisors (see below), whose sum is σ = 9643764347776. Its totient is φ = 4405081888512.

The previous prime is 6642037536737. The next prime is 6642037536781. The reversal of 6642037536759 is 9576357302466.

6642037536759 is a `hidden beast` number, since 6 + 6 + 4 + 20 + 3 + 7 + 536 + 75 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (6642037536737) and next prime (6642037536781).

It is a de Polignac number, because none of the positive numbers 2^k-6642037536759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6642037536696 and 6642037536705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6642037532759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1911926167 + ... + 1911929640.

Almost surely, 2^{6642037536759} is an apocalyptic number.

6642037536759 is a deficient number, since it is larger than the sum of its proper divisors (3001726811017).

6642037536759 is a wasteful number, since it uses less digits than its factorization.

6642037536759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823856006 (or 3823856003 counting only the distinct ones).

The product of its (nonzero) digits is 171460800, while the sum is 63.

The spelling of 6642037536759 in words is "six trillion, six hundred forty-two billion, thirty-seven million, five hundred thirty-six thousand, seven hundred fifty-nine".