44129972808 has 24 divisors (see below), whose sum is σ = 119518676550. Its totient is φ = 14709990912.

The previous prime is 44129972773. The next prime is 44129972813. The reversal of 44129972808 is 80827992144.

It can be written as a sum of positive squares in only one way, i.e., 34678633284 + 9451339524 = 186222^2 + 97218^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306458073 + ... + 306458216.

Almost surely, 2^44129972808 is an apocalyptic number.

It is an amenable number.

44129972808 is an abundant number, since it is smaller than the sum of its proper divisors (75388703742).

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

44129972808 is a wasteful number, since it uses less digits than its factorization.

44129972808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612916301 (or 612916294 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 44129972808 in words is "forty-four billion, one hundred twenty-nine million, nine hundred seventy-two thousand, eight hundred eight".