8642757872 has 40 divisors (see below), whose sum is σ = 19143628896. Its totient is φ = 3702859776.

The previous prime is 8642757803. The next prime is 8642757911. The reversal of 8642757872 is 2787572468.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403628 + ... + 424500.

Almost surely, 2^8642757872 is an apocalyptic number.

It is an amenable number.

8642757872 is an abundant number, since it is smaller than the sum of its proper divisors (10500871024).

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

8642757872 is a wasteful number, since it uses less digits than its factorization.

8642757872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24585 (or 24579 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 56.

The square root of 8642757872 is about 92966.4341146846. The cubic root of 8642757872 is about 2052.1894412484.

The spelling of 8642757872 in words is "eight billion, six hundred forty-two million, seven hundred fifty-seven thousand, eight hundred seventy-two".