50354623665 has 24 divisors (see below), whose sum is σ = 87596464488. Its totient is φ = 26758840320.

The previous prime is 50354623651. The next prime is 50354623681. The reversal of 50354623665 is 56632645305.

50354623665 is a `hidden beast` number, since 5 + 0 + 354 + 6 + 236 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11827215009 + 38527408656 = 108753^2 + 196284^2 .

It is not a de Polignac number, because 50354623665 - 2⁵ = 50354623633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 50354623665.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2007376 + ... + 2032305.

It is an arithmetic number, because the mean of its divisors is an integer number (3649852687).

Almost surely, 2^50354623665 is an apocalyptic number.

It is an amenable number.

50354623665 is a deficient number, since it is larger than the sum of its proper divisors (37241840823).

50354623665 is a wasteful number, since it uses less digits than its factorization.

50354623665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039969 (or 4039966 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 45.

The spelling of 50354623665 in words is "fifty billion, three hundred fifty-four million, six hundred twenty-three thousand, six hundred sixty-five".