50916290865 has 16 divisors (see below), whose sum is σ = 88872071616. Its totient is φ = 24686686400.

The previous prime is 50916290857. The next prime is 50916290881. The reversal of 50916290865 is 56809261905.

It is not a de Polignac number, because 50916290865 - 2³ = 50916290857 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154291626 + ... + 154291955.

It is an arithmetic number, because the mean of its divisors is an integer number (5554504476).

Almost surely, 2^50916290865 is an apocalyptic number.

50916290865 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50916290865 is a deficient number, since it is larger than the sum of its proper divisors (37955780751).

50916290865 is a wasteful number, since it uses less digits than its factorization.

50916290865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308583600.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 50916290865 in words is "fifty billion, nine hundred sixteen million, two hundred ninety thousand, eight hundred sixty-five".