23691482257 has 2 divisors, whose sum is σ = 23691482258. Its totient is φ = 23691482256.

The previous prime is 23691482233. The next prime is 23691482303. The reversal of 23691482257 is 75228419632.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16247071296 + 7444410961 = 127464^2 + 86281^2 .

It is a cyclic number.

It is not a de Polignac number, because 23691482257 - 2²³ = 23683093649 is a prime.

It is a super-2 number, since 2×23691482257² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23691482257.

It is not a weakly prime, because it can be changed into another prime (23691482657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11845741128 + 11845741129.

It is an arithmetic number, because the mean of its divisors is an integer number (11845741129).

Almost surely, 2^23691482257 is an apocalyptic number.

It is an amenable number.

23691482257 is a deficient number, since it is larger than the sum of its proper divisors (1).

23691482257 is an equidigital number, since it uses as much as digits as its factorization.

23691482257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The spelling of 23691482257 in words is "twenty-three billion, six hundred ninety-one million, four hundred eighty-two thousand, two hundred fifty-seven".