45020544805672 has 8 divisors (see below), whose sum is σ = 84413521510650. Its totient is φ = 22510272402832.

The previous prime is 45020544805657. The next prime is 45020544805681. The reversal of 45020544805672 is 27650844502054.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42754153059556 + 2266391746116 = 6538666^2 + 1505454^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2813784050347 + ... + 2813784050362.

Almost surely, 2^{45020544805672} is an apocalyptic number.

It is an amenable number.

45020544805672 is a deficient number, since it is larger than the sum of its proper divisors (39392976704978).

45020544805672 is a wasteful number, since it uses less digits than its factorization.

45020544805672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5627568100715 (or 5627568100711 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 52.

The spelling of 45020544805672 in words is "forty-five trillion, twenty billion, five hundred forty-four million, eight hundred five thousand, six hundred seventy-two".