23277768431 has 2 divisors, whose sum is σ = 23277768432. Its totient is φ = 23277768430.

The previous prime is 23277768361. The next prime is 23277768439. The reversal of 23277768431 is 13486777232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23277768431 - 2²⁶ = 23210659567 is a prime.

It is a super-2 number, since 2×23277768431² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23277768431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23277768439) 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, 11638884215 + 11638884216.

It is an arithmetic number, because the mean of its divisors is an integer number (11638884216).

Almost surely, 2^23277768431 is an apocalyptic number.

23277768431 is a deficient number, since it is larger than the sum of its proper divisors (1).

23277768431 is an equidigital number, since it uses as much as digits as its factorization.

23277768431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 50.

The spelling of 23277768431 in words is "twenty-three billion, two hundred seventy-seven million, seven hundred sixty-eight thousand, four hundred thirty-one".