44772891520 has 96 divisors (see below), whose sum is σ = 124510414680. Its totient is φ = 15350694912.

The previous prime is 44772891509. The next prime is 44772891539. The reversal of 44772891520 is 2519827744.

It is a super-2 number, since 2×44772891520² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

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, 682494 + ... + 745213.

Almost surely, 2^44772891520 is an apocalyptic number.

44772891520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44772891520 is an abundant number, since it is smaller than the sum of its proper divisors (79737523160).

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

44772891520 is a wasteful number, since it uses less digits than its factorization.

44772891520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427740 (or 1427721 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 44772891520 in words is "forty-four billion, seven hundred seventy-two million, eight hundred ninety-one thousand, five hundred twenty".