8613240872 has 16 divisors (see below), whose sum is σ = 16164950100. Its totient is φ = 4302587520.

The previous prime is 8613240851. The next prime is 8613240901. The reversal of 8613240872 is 2780423168.

It can be written as a sum of positive squares in 2 ways, for example, as 8127743716 + 485497156 = 90154^2 + 22034^2 .

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, 495029 + ... + 512132.

Almost surely, 2^8613240872 is an apocalyptic number.

It is an amenable number.

8613240872 is a deficient number, since it is larger than the sum of its proper divisors (7551709228).

8613240872 is a wasteful number, since it uses less digits than its factorization.

8613240872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008236 (or 1008232 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 8613240872 is about 92807.5474948024. The cubic root of 8613240872 is about 2049.8505440912.

The spelling of 8613240872 in words is "eight billion, six hundred thirteen million, two hundred forty thousand, eight hundred seventy-two".