44618819544 has 80 divisors (see below), whose sum is σ = 134587419120. Its totient is φ = 13728864960.

The previous prime is 44618819543. The next prime is 44618819549. The reversal of 44618819544 is 44591881644.

44618819544 is a `hidden beast` number, since 4 + 4 + 6 + 1 + 88 + 19 + 544 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44618819543) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2639892 + ... + 2656739.

It is an arithmetic number, because the mean of its divisors is an integer number (1682342739).

Almost surely, 2^44618819544 is an apocalyptic number.

It is an amenable number.

44618819544 is an abundant number, since it is smaller than the sum of its proper divisors (89968599576).

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

44618819544 is a wasteful number, since it uses less digits than its factorization.

44618819544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296662 (or 5296649 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 44618819544 in words is "forty-four billion, six hundred eighteen million, eight hundred nineteen thousand, five hundred forty-four".