7664112872 has 16 divisors (see below), whose sum is σ = 15475612740. Its totient is φ = 3537282816.

The previous prime is 7664112829. The next prime is 7664112899. The reversal of 7664112872 is 2782114667.

It can be written as a sum of positive squares in 2 ways, for example, as 5577998596 + 2086114276 = 74686^2 + 45674^2 .

It is a super-2 number, since 2×7664112872² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36846593 + ... + 36846800.

Almost surely, 2^7664112872 is an apocalyptic number.

It is an amenable number.

7664112872 is an abundant number, since it is smaller than the sum of its proper divisors (7811499868).

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

7664112872 is a wasteful number, since it uses less digits than its factorization.

7664112872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73693412 (or 73693408 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 7664112872 is about 87544.9191672481. The cubic root of 7664112872 is about 1971.6082679681.

The spelling of 7664112872 in words is "seven billion, six hundred sixty-four million, one hundred twelve thousand, eight hundred seventy-two".