45515432544 has 24 divisors (see below), whose sum is σ = 119478010680. Its totient is φ = 15171810816.

The previous prime is 45515432513. The next prime is 45515432549. The reversal of 45515432544 is 44523451554.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 45515432496 and 45515432505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45515432549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237059449 + ... + 237059640.

It is an arithmetic number, because the mean of its divisors is an integer number (4978250445).

Almost surely, 2^45515432544 is an apocalyptic number.

It is an amenable number.

45515432544 is an abundant number, since it is smaller than the sum of its proper divisors (73962578136).

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

45515432544 is a wasteful number, since it uses less digits than its factorization.

45515432544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474119102 (or 474119094 counting only the distinct ones).

The product of its digits is 960000, while the sum is 42.

The spelling of 45515432544 in words is "forty-five billion, five hundred fifteen million, four hundred thirty-two thousand, five hundred forty-four".