44918885664 has 480 divisors, whose sum is σ = 144994582656. Its totient is φ = 13586227200.

The previous prime is 44918885653. The next prime is 44918885677. The reversal of 44918885664 is 46658881944.

44918885664 is a `hidden beast` number, since 4 + 491 + 8 + 8 + 85 + 6 + 64 = 666.

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 79 ways as a sum of consecutive naturals, for example, 286107474 + ... + 286107630.

Almost surely, 2^44918885664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44918885664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72497291328).

44918885664 is an abundant number, since it is smaller than the sum of its proper divisors (100075696992).

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

44918885664 is a wasteful number, since it uses less digits than its factorization.

44918885664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 373 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The spelling of 44918885664 in words is "forty-four billion, nine hundred eighteen million, eight hundred eighty-five thousand, six hundred sixty-four".