45664687939 has 8 divisors (see below), whose sum is σ = 49184029440. Its totient is φ = 42146299776.

The previous prime is 45664687883. The next prime is 45664687961. The reversal of 45664687939 is 93978646654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45664687939 - 2¹⁹ = 45664163651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45664787939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137254 + ... + 331915.

It is an arithmetic number, because the mean of its divisors is an integer number (6148003680).

Almost surely, 2^45664687939 is an apocalyptic number.

45664687939 is a deficient number, since it is larger than the sum of its proper divisors (3519341501).

45664687939 is a wasteful number, since it uses less digits than its factorization.

45664687939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476669.

The product of its digits is 235146240, while the sum is 67.

The spelling of 45664687939 in words is "forty-five billion, six hundred sixty-four million, six hundred eighty-seven thousand, nine hundred thirty-nine".