44807725681 has 8 divisors (see below), whose sum is σ = 47605599720. Its totient is φ = 42093370368.

The previous prime is 44807725661. The next prime is 44807725687. The reversal of 44807725681 is 18652770844.

It can be written as a sum of positive squares in 4 ways, for example, as 5819248656 + 38988477025 = 76284^2 + 197455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44807725681 - 2²⁵ = 44774171249 is a prime.

It is a super-2 number, since 2×44807725681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44807725687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20878576 + ... + 20880721.

It is an arithmetic number, because the mean of its divisors is an integer number (5950699965).

Almost surely, 2^44807725681 is an apocalyptic number.

It is an amenable number.

44807725681 is a deficient number, since it is larger than the sum of its proper divisors (2797874039).

44807725681 is a wasteful number, since it uses less digits than its factorization.

44807725681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41759363.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 44807725681 in words is "forty-four billion, eight hundred seven million, seven hundred twenty-five thousand, six hundred eighty-one".