50965618464 has 72 divisors (see below), whose sum is σ = 144981165420. Its totient is φ = 16982949888.

The previous prime is 50965618453. The next prime is 50965618481. The reversal of 50965618464 is 46481656905.

50965618464 is a `hidden beast` number, since 509 + 6 + 56 + 1 + 84 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43622499600 + 7343118864 = 208860^2 + 85692^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 50965618464.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 898992 + ... + 954000.

Almost surely, 2^50965618464 is an apocalyptic number.

It is an amenable number.

50965618464 is an abundant number, since it is smaller than the sum of its proper divisors (94015546956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50965618464 is a wasteful number, since it uses less digits than its factorization.

50965618464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58242 (or 58231 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 50965618464 in words is "fifty billion, nine hundred sixty-five million, six hundred eighteen thousand, four hundred sixty-four".