23616261649 has 2 divisors, whose sum is σ = 23616261650. Its totient is φ = 23616261648.

The previous prime is 23616261631. The next prime is 23616261653. The reversal of 23616261649 is 94616261632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22796470225 + 819791424 = 150985^2 + 28632^2 .

It is a cyclic number.

It is not a de Polignac number, because 23616261649 - 2²³ = 23607873041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23616261599 and 23616261608.

It is not a weakly prime, because it can be changed into another prime (23616261619) 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 as a sum of consecutive naturals, namely, 11808130824 + 11808130825.

It is an arithmetic number, because the mean of its divisors is an integer number (11808130825).

Almost surely, 2^23616261649 is an apocalyptic number.

It is an amenable number.

23616261649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23616261649 is an equidigital number, since it uses as much as digits as its factorization.

23616261649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 46.

The spelling of 23616261649 in words is "twenty-three billion, six hundred sixteen million, two hundred sixty-one thousand, six hundred forty-nine".