23869636961 has 2 divisors, whose sum is σ = 23869636962. Its totient is φ = 23869636960.

The previous prime is 23869636943. The next prime is 23869636963. The reversal of 23869636961 is 16963696832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23476368400 + 393268561 = 153220^2 + 19831^2 .

It is a cyclic number.

It is not a de Polignac number, because 23869636961 - 2¹⁸ = 23869374817 is a prime.

Together with 23869636963, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23869636961.

It is not a weakly prime, because it can be changed into another prime (23869636963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11934818480 + 11934818481.

It is an arithmetic number, because the mean of its divisors is an integer number (11934818481).

Almost surely, 2^23869636961 is an apocalyptic number.

It is an amenable number.

23869636961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23869636961 is an equidigital number, since it uses as much as digits as its factorization.

23869636961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 59.

The spelling of 23869636961 in words is "twenty-three billion, eight hundred sixty-nine million, six hundred thirty-six thousand, nine hundred sixty-one".