23637736609 has 2 divisors, whose sum is σ = 23637736610. Its totient is φ = 23637736608.

The previous prime is 23637736511. The next prime is 23637736627. The reversal of 23637736609 is 90663773632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19944500625 + 3693235984 = 141225^2 + 60772^2 .

It is a cyclic number.

It is not a de Polignac number, because 23637736609 - 2⁷ = 23637736481 is a prime.

It is not a weakly prime, because it can be changed into another prime (23637736669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11818868304 + 11818868305.

It is an arithmetic number, because the mean of its divisors is an integer number (11818868305).

Almost surely, 2^23637736609 is an apocalyptic number.

It is an amenable number.

23637736609 is a deficient number, since it is larger than the sum of its proper divisors (1).

23637736609 is an equidigital number, since it uses as much as digits as its factorization.

23637736609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 52.

The spelling of 23637736609 in words is "twenty-three billion, six hundred thirty-seven million, seven hundred thirty-six thousand, six hundred nine".