50865606657 has 12 divisors (see below), whose sum is σ = 73912500480. Its totient is φ = 33707347128.

The previous prime is 50865606647. The next prime is 50865606661. The reversal of 50865606657 is 75660656805.

It is not a de Polignac number, because 50865606657 - 2⁴ = 50865606641 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (50865606647) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16919857 + ... + 16922862.

It is an arithmetic number, because the mean of its divisors is an integer number (6159375040).

Almost surely, 2^50865606657 is an apocalyptic number.

It is an amenable number.

50865606657 is a deficient number, since it is larger than the sum of its proper divisors (23046893823).

50865606657 is a wasteful number, since it uses less digits than its factorization.

50865606657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33842892 (or 33842889 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 54.

The spelling of 50865606657 in words is "fifty billion, eight hundred sixty-five million, six hundred six thousand, six hundred fifty-seven".