23971925899 has 2 divisors, whose sum is σ = 23971925900. Its totient is φ = 23971925898.

The previous prime is 23971925863. The next prime is 23971925903. The reversal of 23971925899 is 99852917932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23971925899 - 2¹³ = 23971917707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23971925899.

It is not a weakly prime, because it can be changed into another prime (23971905899) 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, 11985962949 + 11985962950.

It is an arithmetic number, because the mean of its divisors is an integer number (11985962950).

Almost surely, 2^23971925899 is an apocalyptic number.

23971925899 is a deficient number, since it is larger than the sum of its proper divisors (1).

23971925899 is an equidigital number, since it uses as much as digits as its factorization.

23971925899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 64.

The spelling of 23971925899 in words is "twenty-three billion, nine hundred seventy-one million, nine hundred twenty-five thousand, eight hundred ninety-nine".