23943767677 has 2 divisors, whose sum is σ = 23943767678. Its totient is φ = 23943767676.

The previous prime is 23943767651. The next prime is 23943767737. The reversal of 23943767677 is 77676734932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23591116836 + 352650841 = 153594^2 + 18779^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23943767677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23943737677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11971883838 + 11971883839.

It is an arithmetic number, because the mean of its divisors is an integer number (11971883839).

Almost surely, 2^23943767677 is an apocalyptic number.

It is an amenable number.

23943767677 is a deficient number, since it is larger than the sum of its proper divisors (1).

23943767677 is an equidigital number, since it uses as much as digits as its factorization.

23943767677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56010528, while the sum is 61.

The spelling of 23943767677 in words is "twenty-three billion, nine hundred forty-three million, seven hundred sixty-seven thousand, six hundred seventy-seven".