899137621968 has 20 divisors (see below), whose sum is σ = 2322772190208. Its totient is φ = 299712540640.

The previous prime is 899137621919. The next prime is 899137622027. The reversal of 899137621968 is 869126731998.

899137621968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9366016848 + ... + 9366016943.

Almost surely, 2^899137621968 is an apocalyptic number.

It is an amenable number.

899137621968 is an abundant number, since it is smaller than the sum of its proper divisors (1423634568240).

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

899137621968 is a wasteful number, since it uses less digits than its factorization.

899137621968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18732033802 (or 18732033796 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 69.

The spelling of 899137621968 in words is "eight hundred ninety-nine billion, one hundred thirty-seven million, six hundred twenty-one thousand, nine hundred sixty-eight".