5172120444 has 12 divisors (see below), whose sum is σ = 12068281064. Its totient is φ = 1724040144.

The previous prime is 5172120419. The next prime is 5172120451. The reversal of 5172120444 is 4440212715.

It is a tau number, because it is divible by the number of its divisors (12).

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, 215505007 + ... + 215505030.

Almost surely, 2^5172120444 is an apocalyptic number.

It is an amenable number.

5172120444 is an abundant number, since it is smaller than the sum of its proper divisors (6896160620).

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

5172120444 is a wasteful number, since it uses less digits than its factorization.

5172120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431010044 (or 431010042 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 5172120444 is about 71917.4557670111. The cubic root of 5172120444 is about 1729.3764605525.

The spelling of 5172120444 in words is "five billion, one hundred seventy-two million, one hundred twenty thousand, four hundred forty-four".