50200617978 has 48 divisors (see below), whose sum is σ = 125468066880. Its totient is φ = 14208982848.

The previous prime is 50200617923. The next prime is 50200617989. The reversal of 50200617978 is 87971600205.

50200617978 is a `hidden beast` number, since 5 + 0 + 20 + 0 + 617 + 9 + 7 + 8 = 666.

50200617978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1848283 + ... + 1875246.

It is an arithmetic number, because the mean of its divisors is an integer number (2613918060).

Almost surely, 2^50200617978 is an apocalyptic number.

50200617978 is an abundant number, since it is smaller than the sum of its proper divisors (75267448902).

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

50200617978 is a wasteful number, since it uses less digits than its factorization.

50200617978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3723651 (or 3723648 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 50200617978 in words is "fifty billion, two hundred million, six hundred seventeen thousand, nine hundred seventy-eight".