23886156457 has 2 divisors, whose sum is σ = 23886156458. Its totient is φ = 23886156456.

The previous prime is 23886156409. The next prime is 23886156491. The reversal of 23886156457 is 75465168832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19983780496 + 3902375961 = 141364^2 + 62469^2 .

It is a cyclic number.

It is not a de Polignac number, because 23886156457 - 2²⁷ = 23751938729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23886156398 and 23886156407.

It is not a weakly prime, because it can be changed into another prime (23886156157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11943078228 + 11943078229.

It is an arithmetic number, because the mean of its divisors is an integer number (11943078229).

Almost surely, 2^23886156457 is an apocalyptic number.

It is an amenable number.

23886156457 is a deficient number, since it is larger than the sum of its proper divisors (1).

23886156457 is an equidigital number, since it uses as much as digits as its factorization.

23886156457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9676800, while the sum is 55.

The spelling of 23886156457 in words is "twenty-three billion, eight hundred eighty-six million, one hundred fifty-six thousand, four hundred fifty-seven".