521360887896 has 48 divisors (see below), whose sum is σ = 1450181756400. Its totient is φ = 169090016832.

The previous prime is 521360887849. The next prime is 521360887909. The reversal of 521360887896 is 698788063125.

521360887896 is a `hidden beast` number, since 5 + 2 + 13 + 608 + 8 + 7 + 8 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97850356 + ... + 97855683.

It is an arithmetic number, because the mean of its divisors is an integer number (30212119925).

Almost surely, 2^521360887896 is an apocalyptic number.

It is an amenable number.

521360887896 is an abundant number, since it is smaller than the sum of its proper divisors (928820868504).

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

521360887896 is a wasteful number, since it uses less digits than its factorization.

521360887896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195706088 (or 195706081 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 521360887896 in words is "five hundred twenty-one billion, three hundred sixty million, eight hundred eighty-seven thousand, eight hundred ninety-six".