44981904816 has 60 divisors (see below), whose sum is σ = 131360209968. Its totient is φ = 14342055552.

The previous prime is 44981904763. The next prime is 44981904827. The reversal of 44981904816 is 61840918944.

It is a happy number.

44981904816 is a `hidden beast` number, since 449 + 8 + 190 + 4 + 8 + 1 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6787435 + ... + 6794058.

Almost surely, 2^44981904816 is an apocalyptic number.

44981904816 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

44981904816 is an abundant number, since it is smaller than the sum of its proper divisors (86378305152).

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

44981904816 is a wasteful number, since it uses less digits than its factorization.

44981904816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13581530 (or 13581521 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 44981904816 in words is "forty-four billion, nine hundred eighty-one million, nine hundred four thousand, eight hundred sixteen".