44131554816 has 80 divisors (see below), whose sum is σ = 117613377024. Its totient is φ = 14704994304.

The previous prime is 44131554781. The next prime is 44131554839. The reversal of 44131554816 is 61845513144.

It is a super-2 number, since 2×44131554816² (a number of 22 digits) contains 22 as substring.

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, 7343685 + ... + 7349691.

Almost surely, 2^44131554816 is an apocalyptic number.

It is an amenable number.

44131554816 is an abundant number, since it is smaller than the sum of its proper divisors (73481822208).

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

44131554816 is an equidigital number, since it uses as much as digits as its factorization.

44131554816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811 (or 10795 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The spelling of 44131554816 in words is "forty-four billion, one hundred thirty-one million, five hundred fifty-four thousand, eight hundred sixteen".