45637038728 has 36 divisors (see below), whose sum is σ = 87483249735. Its totient is φ = 22319121616.

The previous prime is 45637038719. The next prime is 45637038737. The reversal of 45637038728 is 82783073654.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is an interprime number because it is at equal distance from previous prime (45637038719) and next prime (45637038737).

It can be written as a sum of positive squares in only one way, i.e., 22818519364 + 22818519364 = 151058^2 + 151058^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=151058.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45637038728.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 28398101 + ... + 28399707.

Almost surely, 2^45637038728 is an apocalyptic number.

It is an amenable number.

45637038728 is a deficient number, since it is larger than the sum of its proper divisors (41846211007).

45637038728 is an frugal number, since it uses more digits than its factorization.

45637038728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 45637038728 in words is "forty-five billion, six hundred thirty-seven million, thirty-eight thousand, seven hundred twenty-eight".