521913884874 has 64 divisors (see below), whose sum is σ = 1116494807040. Its totient is φ = 162265213440.

The previous prime is 521913884749. The next prime is 521913884881. The reversal of 521913884874 is 478488319125.

521913884874 is digitally balanced in base 4, 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 31 ways as a sum of consecutive naturals, for example, 1609242 + ... + 1906170.

It is an arithmetic number, because the mean of its divisors is an integer number (17445231360).

Almost surely, 2^521913884874 is an apocalyptic number.

521913884874 is an abundant number, since it is smaller than the sum of its proper divisors (594580922166).

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

521913884874 is a wasteful number, since it uses less digits than its factorization.

521913884874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297275.

The product of its digits is 15482880, while the sum is 60.

The spelling of 521913884874 in words is "five hundred twenty-one billion, nine hundred thirteen million, eight hundred eighty-four thousand, eight hundred seventy-four".