45027872018 has 128 divisors (see below), whose sum is σ = 80207262720. Its totient is φ = 18819440640.

The previous prime is 45027872017. The next prime is 45027872039. The reversal of 45027872018 is 81027872054.

It is a self number, because there is not a number n which added to its sum of digits gives 45027872018.

It is not an unprimeable number, because it can be changed into a prime (45027872017) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 86425598 + ... + 86426118.

It is an arithmetic number, because the mean of its divisors is an integer number (626619240).

Almost surely, 2^45027872018 is an apocalyptic number.

45027872018 is a deficient number, since it is larger than the sum of its proper divisors (35179390702).

45027872018 is a wasteful number, since it uses less digits than its factorization.

45027872018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 250880, while the sum is 44.

The spelling of 45027872018 in words is "forty-five billion, twenty-seven million, eight hundred seventy-two thousand, eighteen".