44616861644 has 24 divisors (see below), whose sum is σ = 82425860160. Its totient is φ = 21073384656.

The previous prime is 44616861613. The next prime is 44616861677.

44616861644 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 44616861592 and 44616861601.

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, 819542 + ... + 872285.

It is an arithmetic number, because the mean of its divisors is an integer number (3434410840).

Almost surely, 2^44616861644 is an apocalyptic number.

It is an amenable number.

44616861644 is a deficient number, since it is larger than the sum of its proper divisors (37808998516).

44616861644 is a wasteful number, since it uses less digits than its factorization.

44616861644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692197 (or 1692195 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 50.

The spelling of 44616861644 in words is "forty-four billion, six hundred sixteen million, eight hundred sixty-one thousand, six hundred forty-four".