23385916316977 has 2 divisors, whose sum is σ = 23385916316978. Its totient is φ = 23385916316976.

The previous prime is 23385916316911. The next prime is 23385916317041. The reversal of 23385916316977 is 77961361958332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13228380023056 + 10157536293921 = 3637084^2 + 3187089^2 .

It is a cyclic number.

It is not a de Polignac number, because 23385916316977 - 2¹⁹ = 23385915792689 is a prime.

It is not a weakly prime, because it can be changed into another prime (23385916317977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11692958158488 + 11692958158489.

It is an arithmetic number, because the mean of its divisors is an integer number (11692958158489).

Almost surely, 2^{23385916316977} is an apocalyptic number.

It is an amenable number.

23385916316977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23385916316977 is an equidigital number, since it uses as much as digits as its factorization.

23385916316977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 70.

It can be divided in two parts, 2338591 and 6316977, that added together give a palindrome (8655568).

The spelling of 23385916316977 in words is "twenty-three trillion, three hundred eighty-five billion, nine hundred sixteen million, three hundred sixteen thousand, nine hundred seventy-seven".