23398822961 has 2 divisors, whose sum is σ = 23398822962. Its totient is φ = 23398822960.

The previous prime is 23398822891. The next prime is 23398822987. The reversal of 23398822961 is 16922889332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22853880625 + 544942336 = 151175^2 + 23344^2 .

It is a cyclic number.

It is not a de Polignac number, because 23398822961 - 2¹⁰ = 23398821937 is a prime.

It is not a weakly prime, because it can be changed into another prime (23398822991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11699411480 + 11699411481.

It is an arithmetic number, because the mean of its divisors is an integer number (11699411481).

Almost surely, 2^23398822961 is an apocalyptic number.

It is an amenable number.

23398822961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23398822961 is an equidigital number, since it uses as much as digits as its factorization.

23398822961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The spelling of 23398822961 in words is "twenty-three billion, three hundred ninety-eight million, eight hundred twenty-two thousand, nine hundred sixty-one".