23457777811249 has 2 divisors, whose sum is σ = 23457777811250. Its totient is φ = 23457777811248.

The previous prime is 23457777811211. The next prime is 23457777811291. The reversal of 23457777811249 is 94211877775432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22561597509025 + 896180302224 = 4749905^2 + 946668^2 .

It is a cyclic number.

It is not a de Polignac number, because 23457777811249 - 2⁷ = 23457777811121 is a prime.

It is not a weakly prime, because it can be changed into another prime (23457777811049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11728888905624 + 11728888905625.

It is an arithmetic number, because the mean of its divisors is an integer number (11728888905625).

Almost surely, 2^{23457777811249} is an apocalyptic number.

It is an amenable number.

23457777811249 is a deficient number, since it is larger than the sum of its proper divisors (1).

23457777811249 is an equidigital number, since it uses as much as digits as its factorization.

23457777811249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165957120, while the sum is 67.

The spelling of 23457777811249 in words is "twenty-three trillion, four hundred fifty-seven billion, seven hundred seventy-seven million, eight hundred eleven thousand, two hundred forty-nine".