8111870972 has 12 divisors (see below), whose sum is σ = 14579444040. Its totient is φ = 3946315536.

The previous prime is 8111870941. The next prime is 8111870983. The reversal of 8111870972 is 2790781118.

It is a congruent number.

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, 27404822 + ... + 27405117.

It is an arithmetic number, because the mean of its divisors is an integer number (1214953670).

Almost surely, 2^8111870972 is an apocalyptic number.

It is an amenable number.

8111870972 is a deficient number, since it is larger than the sum of its proper divisors (6467573068).

8111870972 is a wasteful number, since it uses less digits than its factorization.

8111870972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54809980 (or 54809978 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 44.

The square root of 8111870972 is about 90065.9256989012. The cubic root of 8111870972 is about 2009.2794602224.

The spelling of 8111870972 in words is "eight billion, one hundred eleven million, eight hundred seventy thousand, nine hundred seventy-two".