23923261457 has 2 divisors, whose sum is σ = 23923261458. Its totient is φ = 23923261456.

The previous prime is 23923261337. The next prime is 23923261463. The reversal of 23923261457 is 75416232932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13134076816 + 10789184641 = 114604^2 + 103871^2 .

It is a cyclic number.

It is not a de Polignac number, because 23923261457 - 2¹⁶ = 23923195921 is a prime.

It is not a weakly prime, because it can be changed into another prime (23923261157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11961630728 + 11961630729.

It is an arithmetic number, because the mean of its divisors is an integer number (11961630729).

Almost surely, 2^23923261457 is an apocalyptic number.

It is an amenable number.

23923261457 is a deficient number, since it is larger than the sum of its proper divisors (1).

23923261457 is an equidigital number, since it uses as much as digits as its factorization.

23923261457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 44.

The spelling of 23923261457 in words is "twenty-three billion, nine hundred twenty-three million, two hundred sixty-one thousand, four hundred fifty-seven".