45868642637 has 4 divisors (see below), whose sum is σ = 45872839836. Its totient is φ = 45864445440.

The previous prime is 45868642613. The next prime is 45868642679. The reversal of 45868642637 is 73624686854.

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 32274481801 + 13594160836 = 179651^2 + 116594^2 .

It is a cyclic number.

It is not a de Polignac number, because 45868642637 - 2²⁰ = 45867594061 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 (45868642037) 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, 2082164 + ... + 2104077.

It is an arithmetic number, because the mean of its divisors is an integer number (11468209959).

Almost surely, 2^45868642637 is an apocalyptic number.

It is an amenable number.

45868642637 is a deficient number, since it is larger than the sum of its proper divisors (4197199).

45868642637 is a wasteful number, since it uses less digits than its factorization.

45868642637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197198.

The product of its digits is 46448640, while the sum is 59.

The spelling of 45868642637 in words is "forty-five billion, eight hundred sixty-eight million, six hundred forty-two thousand, six hundred thirty-seven".