23905873961 has 2 divisors, whose sum is σ = 23905873962. Its totient is φ = 23905873960.

The previous prime is 23905873933. The next prime is 23905873987. The reversal of 23905873961 is 16937850932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12409960000 + 11495913961 = 111400^2 + 107219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23905873961 is a prime.

It is not a weakly prime, because it can be changed into another prime (23905878961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11952936980 + 11952936981.

It is an arithmetic number, because the mean of its divisors is an integer number (11952936981).

Almost surely, 2^23905873961 is an apocalyptic number.

It is an amenable number.

23905873961 is a deficient number, since it is larger than the sum of its proper divisors (1).

23905873961 is an equidigital number, since it uses as much as digits as its factorization.

23905873961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 23905873961 in words is "twenty-three billion, nine hundred five million, eight hundred seventy-three thousand, nine hundred sixty-one".