745444521164 has 24 divisors (see below), whose sum is σ = 1499506907808. Its totient is φ = 317629537920.

The previous prime is 745444521161. The next prime is 745444521179. The reversal of 745444521164 is 461125444547.

It is not an unprimeable number, because it can be changed into a prime (745444521161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76940297 + ... + 76949984.

It is an arithmetic number, because the mean of its divisors is an integer number (62479454492).

Almost surely, 2^745444521164 is an apocalyptic number.

It is an amenable number.

745444521164 is an abundant number, since it is smaller than the sum of its proper divisors (754062386644).

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

745444521164 is a wasteful number, since it uses less digits than its factorization.

745444521164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153890465 (or 153890463 counting only the distinct ones).

The product of its digits is 2150400, while the sum is 47.

The spelling of 745444521164 in words is "seven hundred forty-five billion, four hundred forty-four million, five hundred twenty-one thousand, one hundred sixty-four".