5172686040 has 64 divisors (see below), whose sum is σ = 16018652160. Its totient is φ = 1334885760.

The previous prime is 5172686021. The next prime is 5172686069. The reversal of 5172686040 is 406862715.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5172686040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691534 + ... + 698973.

It is an arithmetic number, because the mean of its divisors is an integer number (250291440).

Almost surely, 2^5172686040 is an apocalyptic number.

It is an amenable number.

5172686040 is an abundant number, since it is smaller than the sum of its proper divisors (10845966120).

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

5172686040 is a wasteful number, since it uses less digits than its factorization.

5172686040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390552 (or 1390548 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 5172686040 is about 71921.3879176424. The cubic root of 5172686040 is about 1729.4394967719.

The spelling of 5172686040 in words is "five billion, one hundred seventy-two million, six hundred eighty-six thousand, forty".