50816905920 has 672 divisors, whose sum is σ = 203519324736. Its totient is φ = 11501568000.

The previous prime is 50816905913. The next prime is 50816906017. The reversal of 50816905920 is 2950961805.

50816905920 is a `hidden beast` number, since 50 + 8 + 1 + 6 + 9 + 0 + 592 + 0 = 666.

50816905920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84553620 + ... + 84554220.

It is an arithmetic number, because the mean of its divisors is an integer number (302856138).

Almost surely, 2^50816905920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50816905920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101759662368).

50816905920 is an abundant number, since it is smaller than the sum of its proper divisors (152702418816).

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

50816905920 is a wasteful number, since it uses less digits than its factorization.

50816905920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The spelling of 50816905920 in words is "fifty billion, eight hundred sixteen million, nine hundred five thousand, nine hundred twenty".