5172640432 has 20 divisors (see below), whose sum is σ = 10072358800. Its totient is φ = 2573322048.

The previous prime is 5172640399. The next prime is 5172640457. The reversal of 5172640432 is 2340462715.

It is a super-2 number, since 2×5172640432² = 53512418077522293248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809103 + ... + 815470.

It is an arithmetic number, because the mean of its divisors is an integer number (503617940).

Almost surely, 2^5172640432 is an apocalyptic number.

It is an amenable number.

5172640432 is a deficient number, since it is larger than the sum of its proper divisors (4899718368).

5172640432 is a wasteful number, since it uses less digits than its factorization.

5172640432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1624780 (or 1624774 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 5172640432 is about 71921.0708485351. The cubic root of 5172640432 is about 1729.4344138866.

The spelling of 5172640432 in words is "five billion, one hundred seventy-two million, six hundred forty thousand, four hundred thirty-two".