23577316691 has 4 divisors (see below), whose sum is σ = 23585589384. Its totient is φ = 23569044000.

The previous prime is 23577316669. The next prime is 23577316717. The reversal of 23577316691 is 19661377532.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23577316691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23577316621) 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 3 ways as a sum of consecutive naturals, for example, 4132070 + ... + 4137771.

It is an arithmetic number, because the mean of its divisors is an integer number (5896397346).

Almost surely, 2^23577316691 is an apocalyptic number.

23577316691 is a deficient number, since it is larger than the sum of its proper divisors (8272693).

23577316691 is an equidigital number, since it uses as much as digits as its factorization.

23577316691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272692.

The product of its digits is 1428840, while the sum is 50.

The spelling of 23577316691 in words is "twenty-three billion, five hundred seventy-seven million, three hundred sixteen thousand, six hundred ninety-one".