23977006961 has 2 divisors, whose sum is σ = 23977006962. Its totient is φ = 23977006960.

The previous prime is 23977006919. The next prime is 23977006973. The reversal of 23977006961 is 16960077932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23785350625 + 191656336 = 154225^2 + 13844^2 .

It is a cyclic number.

It is not a de Polignac number, because 23977006961 - 2²² = 23972812657 is a prime.

It is not a weakly prime, because it can be changed into another prime (23977006981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11988503480 + 11988503481.

It is an arithmetic number, because the mean of its divisors is an integer number (11988503481).

Almost surely, 2^23977006961 is an apocalyptic number.

It is an amenable number.

23977006961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23977006961 is an equidigital number, since it uses as much as digits as its factorization.

23977006961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 50.

The spelling of 23977006961 in words is "twenty-three billion, nine hundred seventy-seven million, six thousand, nine hundred sixty-one".