44021548564 has 48 divisors (see below), whose sum is σ = 88891165440. Its totient is φ = 18685290240.

The previous prime is 44021548559. The next prime is 44021548589. The reversal of 44021548564 is 46584512044.

It is a happy number.

44021548564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×44021548564² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44021548564.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670934 + ... + 1697074.

It is an arithmetic number, because the mean of its divisors is an integer number (1851899280).

Almost surely, 2^44021548564 is an apocalyptic number.

It is an amenable number.

44021548564 is an abundant number, since it is smaller than the sum of its proper divisors (44869616876).

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

44021548564 is a wasteful number, since it uses less digits than its factorization.

44021548564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26728 (or 26726 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 43.

The spelling of 44021548564 in words is "forty-four billion, twenty-one million, five hundred forty-eight thousand, five hundred sixty-four".