44562013818 has 24 divisors (see below), whose sum is σ = 101859158688. Its totient is φ = 12731613072.

The previous prime is 44562013813. The next prime is 44562013877. The reversal of 44562013818 is 81831026544.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 44562013818.

It is not an unprimeable number, because it can be changed into a prime (44562013813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1351780 + ... + 1384352.

It is an arithmetic number, because the mean of its divisors is an integer number (4244131612).

Almost surely, 2^44562013818 is an apocalyptic number.

44562013818 is an abundant number, since it is smaller than the sum of its proper divisors (57297144870).

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

44562013818 is an frugal number, since it uses more digits than its factorization.

44562013818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65158 (or 32585 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

Multiplying 44562013818 by its sum of digits (42), we get a square (1871604580356 = 1368066²).

44562013818 divided by its sum of digits (42) gives a square (1061000329 = 32573²).

The spelling of 44562013818 in words is "forty-four billion, five hundred sixty-two million, thirteen thousand, eight hundred eighteen".