44861864544 has 144 divisors (see below), whose sum is σ = 148776919200. Its totient is φ = 12817647360.

The previous prime is 44861864521. The next prime is 44861864581. The reversal of 44861864544 is 44546816844.

44861864544 is a `hidden beast` number, since 4 + 4 + 8 + 6 + 186 + 454 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128287 + ... + 325854.

It is an arithmetic number, because the mean of its divisors is an integer number (1033173050).

Almost surely, 2^44861864544 is an apocalyptic number.

It is an amenable number.

44861864544 is an abundant number, since it is smaller than the sum of its proper divisors (103915054656).

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

44861864544 is a wasteful number, since it uses less digits than its factorization.

44861864544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454178 (or 454153 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 54.

The spelling of 44861864544 in words is "forty-four billion, eight hundred sixty-one million, eight hundred sixty-four thousand, five hundred forty-four".