23953415777 has 2 divisors, whose sum is σ = 23953415778. Its totient is φ = 23953415776.

The previous prime is 23953415743. The next prime is 23953415779. The reversal of 23953415777 is 77751435932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23202600976 + 750814801 = 152324^2 + 27401^2 .

It is a cyclic number.

It is not a de Polignac number, because 23953415777 - 2⁶ = 23953415713 is a prime.

It is a super-2 number, since 2×23953415777² (a number of 22 digits) contains 22 as substring.

Together with 23953415779, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23953415779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11976707888 + 11976707889.

It is an arithmetic number, because the mean of its divisors is an integer number (11976707889).

Almost surely, 2^23953415777 is an apocalyptic number.

It is an amenable number.

23953415777 is a deficient number, since it is larger than the sum of its proper divisors (1).

23953415777 is an equidigital number, since it uses as much as digits as its factorization.

23953415777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5556600, while the sum is 53.

The spelling of 23953415777 in words is "twenty-three billion, nine hundred fifty-three million, four hundred fifteen thousand, seven hundred seventy-seven".