23632872017 has 2 divisors, whose sum is σ = 23632872018. Its totient is φ = 23632872016.

The previous prime is 23632872013. The next prime is 23632872059. The reversal of 23632872017 is 71027823632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22284219841 + 1348652176 = 149279^2 + 36724^2 .

It is a cyclic number.

It is not a de Polignac number, because 23632872017 - 2² = 23632872013 is a prime.

It is not a weakly prime, because it can be changed into another prime (23632872013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11816436008 + 11816436009.

It is an arithmetic number, because the mean of its divisors is an integer number (11816436009).

Almost surely, 2^23632872017 is an apocalyptic number.

It is an amenable number.

23632872017 is a deficient number, since it is larger than the sum of its proper divisors (1).

23632872017 is an equidigital number, since it uses as much as digits as its factorization.

23632872017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 23632872017 in words is "twenty-three billion, six hundred thirty-two million, eight hundred seventy-two thousand, seventeen".