44637873644 has 24 divisors (see below), whose sum is σ = 96143113248. Its totient is φ = 17658938880.

The previous prime is 44637873619. The next prime is 44637873653.

44637873644 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 44637873644.

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, 61315397 + ... + 61316124.

It is an arithmetic number, because the mean of its divisors is an integer number (4005963052).

Almost surely, 2^44637873644 is an apocalyptic number.

It is an amenable number.

44637873644 is an abundant number, since it is smaller than the sum of its proper divisors (51505239604).

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

44637873644 is a wasteful number, since it uses less digits than its factorization.

44637873644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122631545 (or 122631543 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 56.

The spelling of 44637873644 in words is "forty-four billion, six hundred thirty-seven million, eight hundred seventy-three thousand, six hundred forty-four".