2172510644 has 24 divisors (see below), whose sum is σ = 3863539680. Its totient is φ = 1068683616.

The previous prime is 2172510623. The next prime is 2172510653. The reversal of 2172510644 is 4460152712.

2172510644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2172510644.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225494 + ... + 234930.

It is an arithmetic number, because the mean of its divisors is an integer number (160980820).

Almost surely, 2^2172510644 is an apocalyptic number.

It is an amenable number.

2172510644 is a deficient number, since it is larger than the sum of its proper divisors (1691029036).

2172510644 is a wasteful number, since it uses less digits than its factorization.

2172510644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367 (or 10365 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2172510644 is about 46610.1989268443. The cubic root of 2172510644 is about 1295.1516931470.

The spelling of 2172510644 in words is "two billion, one hundred seventy-two million, five hundred ten thousand, six hundred forty-four".