845557318924 has 6 divisors (see below), whose sum is σ = 1479725308124. Its totient is φ = 422778659460.

The previous prime is 845557318909. The next prime is 845557318951. The reversal of 845557318924 is 429813755548.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105694664862 + ... + 105694664869.

Almost surely, 2^845557318924 is an apocalyptic number.

It is an amenable number.

845557318924 is a deficient number, since it is larger than the sum of its proper divisors (634167989200).

845557318924 is a wasteful number, since it uses less digits than its factorization.

845557318924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211389329735 (or 211389329733 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 61.

The spelling of 845557318924 in words is "eight hundred forty-five billion, five hundred fifty-seven million, three hundred eighteen thousand, nine hundred twenty-four".