44624642644 has 12 divisors (see below), whose sum is σ = 78099404404. Its totient is φ = 22310527104.

The previous prime is 44624642639. The next prime is 44624642687.

44624642644 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 22548626244 + 22076016400 = 150162^2 + 148580^2 .

It is a super-2 number, since 2×44624642644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44624642594 and 44624642603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391797 + ... + 492700.

Almost surely, 2^44624642644 is an apocalyptic number.

It is an amenable number.

44624642644 is a deficient number, since it is larger than the sum of its proper divisors (33474761760).

44624642644 is a wasteful number, since it uses less digits than its factorization.

44624642644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897114 (or 897112 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 46.

The spelling of 44624642644 in words is "forty-four billion, six hundred twenty-four million, six hundred forty-two thousand, six hundred forty-four".