8572543812 has 72 divisors (see below), whose sum is σ = 25341091776. Its totient is φ = 2392334784.

The previous prime is 8572543757. The next prime is 8572543817. The reversal of 8572543812 is 2183452758.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8572543817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384723 + ... + 406394.

It is an arithmetic number, because the mean of its divisors is an integer number (351959608).

Almost surely, 2^8572543812 is an apocalyptic number.

It is an amenable number.

8572543812 is an abundant number, since it is smaller than the sum of its proper divisors (16768547964).

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

8572543812 is a wasteful number, since it uses less digits than its factorization.

8572543812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791177 (or 791172 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 8572543812 is about 92588.0327688195. The cubic root of 8572543812 is about 2046.6169712222.

The spelling of 8572543812 in words is "eight billion, five hundred seventy-two million, five hundred forty-three thousand, eight hundred twelve".