45118921472 has 36 divisors (see below), whose sum is σ = 90246777936. Its totient is φ = 22513075200.

The previous prime is 45118921447. The next prime is 45118921481. The reversal of 45118921472 is 27412981154.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56279 + ... + 305622.

Almost surely, 2^45118921472 is an apocalyptic number.

It is an amenable number.

45118921472 is an abundant number, since it is smaller than the sum of its proper divisors (45127856464).

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

45118921472 is an equidigital number, since it uses as much as digits as its factorization.

45118921472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362404 (or 362390 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The spelling of 45118921472 in words is "forty-five billion, one hundred eighteen million, nine hundred twenty-one thousand, four hundred seventy-two".