23751406525657 has 2 divisors, whose sum is σ = 23751406525658. Its totient is φ = 23751406525656.

The previous prime is 23751406525621. The next prime is 23751406525703. The reversal of 23751406525657 is 75652560415732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17987234570496 + 5764171955161 = 4241136^2 + 2400869^2 .

It is a cyclic number.

It is not a de Polignac number, because 23751406525657 - 2⁷ = 23751406525529 is a prime.

It is not a weakly prime, because it can be changed into another prime (23751406523657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11875703262828 + 11875703262829.

It is an arithmetic number, because the mean of its divisors is an integer number (11875703262829).

Almost surely, 2^{23751406525657} is an apocalyptic number.

It is an amenable number.

23751406525657 is a deficient number, since it is larger than the sum of its proper divisors (1).

23751406525657 is an equidigital number, since it uses as much as digits as its factorization.

23751406525657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920000, while the sum is 58.

The spelling of 23751406525657 in words is "twenty-three trillion, seven hundred fifty-one billion, four hundred six million, five hundred twenty-five thousand, six hundred fifty-seven".