8642057992 has 16 divisors (see below), whose sum is σ = 16213289040. Its totient is φ = 4318514256.

The previous prime is 8642057951. The next prime is 8642058041. The reversal of 8642057992 is 2997502468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299698 + ... + 327265.

It is an arithmetic number, because the mean of its divisors is an integer number (1013330565).

Almost surely, 2^8642057992 is an apocalyptic number.

It is an amenable number.

8642057992 is a deficient number, since it is larger than the sum of its proper divisors (7571231048).

8642057992 is a wasteful number, since it uses less digits than its factorization.

8642057992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628692 (or 628688 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 52.

The square root of 8642057992 is about 92962.6698842067. The cubic root of 8642057992 is about 2052.1340451530.

The spelling of 8642057992 in words is "eight billion, six hundred forty-two million, fifty-seven thousand, nine hundred ninety-two".