45374045221 has 4 divisors (see below), whose sum is σ = 46938667500. Its totient is φ = 43809422944.

The previous prime is 45374045203. The next prime is 45374045231. The reversal of 45374045221 is 12254047354.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31902960996 + 13471084225 = 178614^2 + 116065^2 .

It is a cyclic number.

It is not a de Polignac number, because 45374045221 - 2¹³ = 45374037029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45374045201) 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, 782311096 + ... + 782311153.

It is an arithmetic number, because the mean of its divisors is an integer number (11734666875).

Almost surely, 2^45374045221 is an apocalyptic number.

It is an amenable number.

45374045221 is a deficient number, since it is larger than the sum of its proper divisors (1564622279).

45374045221 is a wasteful number, since it uses less digits than its factorization.

45374045221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564622278.

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 45374045221 in words is "forty-five billion, three hundred seventy-four million, forty-five thousand, two hundred twenty-one".