23575447937 has 2 divisors, whose sum is σ = 23575447938. Its totient is φ = 23575447936.

The previous prime is 23575447913. The next prime is 23575447939. The reversal of 23575447937 is 73974457532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21962943601 + 1612504336 = 148199^2 + 40156^2 .

It is a cyclic number.

It is not a de Polignac number, because 23575447937 - 2²⁰ = 23574399361 is a prime.

Together with 23575447939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23575447939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11787723968 + 11787723969.

It is an arithmetic number, because the mean of its divisors is an integer number (11787723969).

Almost surely, 2^23575447937 is an apocalyptic number.

It is an amenable number.

23575447937 is a deficient number, since it is larger than the sum of its proper divisors (1).

23575447937 is an equidigital number, since it uses as much as digits as its factorization.

23575447937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22226400, while the sum is 56.

The spelling of 23575447937 in words is "twenty-three billion, five hundred seventy-five million, four hundred forty-seven thousand, nine hundred thirty-seven".