23872076681 has 2 divisors, whose sum is σ = 23872076682. Its totient is φ = 23872076680.

The previous prime is 23872076663. The next prime is 23872076707. The reversal of 23872076681 is 18667027832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15305648656 + 8566428025 = 123716^2 + 92555^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23872076681 is a prime.

It is a super-2 number, since 2×23872076681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23872076981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11936038340 + 11936038341.

It is an arithmetic number, because the mean of its divisors is an integer number (11936038341).

Almost surely, 2^23872076681 is an apocalyptic number.

It is an amenable number.

23872076681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23872076681 is an equidigital number, since it uses as much as digits as its factorization.

23872076681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 23872076681 in words is "twenty-three billion, eight hundred seventy-two million, seventy-six thousand, six hundred eighty-one".