45003997020 has 48 divisors (see below), whose sum is σ = 126124191648. Its totient is φ = 11990304000.

The previous prime is 45003996971. The next prime is 45003997033. The reversal of 45003997020 is 2079930054.

It is a self number, because there is not a number n which added to its sum of digits gives 45003997020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268731 + ... + 402770.

It is an arithmetic number, because the mean of its divisors is an integer number (2627587326).

Almost surely, 2^45003997020 is an apocalyptic number.

It is an amenable number.

45003997020 is an abundant number, since it is smaller than the sum of its proper divisors (81120194628).

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

45003997020 is a wasteful number, since it uses less digits than its factorization.

45003997020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672630 (or 672628 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 45003997020 in words is "forty-five billion, three million, nine hundred ninety-seven thousand, twenty".