45885638845 has 4 divisors (see below), whose sum is σ = 55062766620. Its totient is φ = 36708511072.

The previous prime is 45885638839. The next prime is 45885638849. The reversal of 45885638845 is 54883658854.

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 12926325636 + 32959313209 = 113694^2 + 181547^2 .

It is a cyclic number.

It is not a de Polignac number, because 45885638845 - 2²⁵ = 45852084413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45885638849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4588563880 + ... + 4588563889.

It is an arithmetic number, because the mean of its divisors is an integer number (13765691655).

Almost surely, 2^45885638845 is an apocalyptic number.

It is an amenable number.

45885638845 is a deficient number, since it is larger than the sum of its proper divisors (9177127775).

45885638845 is an equidigital number, since it uses as much as digits as its factorization.

45885638845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9177127774.

The product of its digits is 147456000, while the sum is 64.

The spelling of 45885638845 in words is "forty-five billion, eight hundred eighty-five million, six hundred thirty-eight thousand, eight hundred forty-five".