23890062681 has 6 divisors (see below), whose sum is σ = 34507868330. Its totient is φ = 15926708448.

The previous prime is 23890062649. The next prime is 23890062773. The reversal of 23890062681 is 18626009832.

23890062681 is a `hidden beast` number, since 2 + 389 + 0 + 0 + 6 + 268 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22477505625 + 1412557056 = 149925^2 + 37584^2 .

It is not a de Polignac number, because 23890062681 - 2⁵ = 23890062649 is a prime.

It is a super-2 number, since 2×23890062681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23890067681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1327225696 + ... + 1327225713.

Almost surely, 2^23890062681 is an apocalyptic number.

It is an amenable number.

23890062681 is a deficient number, since it is larger than the sum of its proper divisors (10617805649).

23890062681 is a wasteful number, since it uses less digits than its factorization.

23890062681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2654451415 (or 2654451412 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 23890062681 in words is "twenty-three billion, eight hundred ninety million, sixty-two thousand, six hundred eighty-one".