8572640492 has 24 divisors (see below), whose sum is σ = 16169524896. Its totient is φ = 3953323008.

The previous prime is 8572640491. The next prime is 8572640567. The reversal of 8572640492 is 2940462758.

It is not an unprimeable number, because it can be changed into a prime (8572640491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4448 + ... + 131015.

It is an arithmetic number, because the mean of its divisors is an integer number (673730204).

Almost surely, 2^8572640492 is an apocalyptic number.

It is an amenable number.

8572640492 is a deficient number, since it is larger than the sum of its proper divisors (7596884404).

8572640492 is a wasteful number, since it uses less digits than its factorization.

8572640492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136697 (or 136695 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 8572640492 is about 92588.5548650588. The cubic root of 8572640492 is about 2046.6246650172.

The spelling of 8572640492 in words is "eight billion, five hundred seventy-two million, six hundred forty thousand, four hundred ninety-two".