5172154842 has 16 divisors (see below), whose sum is σ = 10364880960. Its totient is φ = 1720623072.

The previous prime is 5172154789. The next prime is 5172154861. The reversal of 5172154842 is 2484512715.

It is a self number, because there is not a number n which added to its sum of digits gives 5172154842.

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, 853867 + ... + 859902.

It is an arithmetic number, because the mean of its divisors is an integer number (647805060).

Almost surely, 2^5172154842 is an apocalyptic number.

5172154842 is an abundant number, since it is smaller than the sum of its proper divisors (5192726118).

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

5172154842 is a wasteful number, since it uses less digits than its factorization.

5172154842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714277.

The product of its digits is 89600, while the sum is 39.

The square root of 5172154842 is about 71917.6949157855. The cubic root of 5172154842 is about 1729.3802943740.

The spelling of 5172154842 in words is "five billion, one hundred seventy-two million, one hundred fifty-four thousand, eight hundred forty-two".