8857491432 has 32 divisors (see below), whose sum is σ = 22153171680. Its totient is φ = 2951238080.

The previous prime is 8857491371. The next prime is 8857491463. The reversal of 8857491432 is 2341947588.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 20358 + ... + 134645.

It is an arithmetic number, because the mean of its divisors is an integer number (692286615).

Almost surely, 2^8857491432 is an apocalyptic number.

It is an amenable number.

8857491432 is an abundant number, since it is smaller than the sum of its proper divisors (13295680248).

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

8857491432 is a wasteful number, since it uses less digits than its factorization.

8857491432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157393 (or 157389 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 8857491432 is about 94114.2467004863. The cubic root of 8857491432 is about 2069.0464800215.

The spelling of 8857491432 in words is "eight billion, eight hundred fifty-seven million, four hundred ninety-one thousand, four hundred thirty-two".