45459191544 has 32 divisors (see below), whose sum is σ = 122390131920. Its totient is φ = 13987443456.

The previous prime is 45459191521. The next prime is 45459191579. The reversal of 45459191544 is 44519195454.

45459191544 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 2×45459191544² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72850957 + ... + 72851580.

Almost surely, 2^45459191544 is an apocalyptic number.

It is an amenable number.

45459191544 is an abundant number, since it is smaller than the sum of its proper divisors (76930940376).

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

45459191544 is a wasteful number, since it uses less digits than its factorization.

45459191544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145702559 (or 145702555 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 51.

The spelling of 45459191544 in words is "forty-five billion, four hundred fifty-nine million, one hundred ninety-one thousand, five hundred forty-four".