46172742728 has 36 divisors (see below), whose sum is σ = 100717685865. Its totient is φ = 19786495008.

The previous prime is 46172742701. The next prime is 46172742743. The reversal of 46172742728 is 82724727164.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 46103819524 + 68923204 = 214718^2 + 8302^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=151942.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4248950 + ... + 4259802.

Almost surely, 2^46172742728 is an apocalyptic number.

It is an amenable number.

46172742728 is an abundant number, since it is smaller than the sum of its proper divisors (54544943137).

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

46172742728 is an frugal number, since it uses more digits than its factorization.

46172742728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21726 (or 10862 counting only the distinct ones).

The product of its digits is 2107392, while the sum is 50.

Multiplying 46172742728 by its sum of digits (50), we get a square (2308637136400 = 1519420²).

The spelling of 46172742728 in words is "forty-six billion, one hundred seventy-two million, seven hundred forty-two thousand, seven hundred twenty-eight".