23627633655281 has 2 divisors, whose sum is σ = 23627633655282. Its totient is φ = 23627633655280.

The previous prime is 23627633655133. The next prime is 23627633655287. The reversal of 23627633655281 is 18255633672632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14542141589056 + 9085492066225 = 3813416^2 + 3014215^2 .

It is a cyclic number.

It is not a de Polignac number, because 23627633655281 - 2²² = 23627629460977 is a prime.

It is a super-2 number, since 2×23627633655281² (a number of 28 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 23627633655281.

It is not a weakly prime, because it can be changed into another prime (23627633655287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11813816827640 + 11813816827641.

It is an arithmetic number, because the mean of its divisors is an integer number (11813816827641).

Almost surely, 2^{23627633655281} is an apocalyptic number.

It is an amenable number.

23627633655281 is a deficient number, since it is larger than the sum of its proper divisors (1).

23627633655281 is an equidigital number, since it uses as much as digits as its factorization.

23627633655281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 59.

The spelling of 23627633655281 in words is "twenty-three trillion, six hundred twenty-seven billion, six hundred thirty-three million, six hundred fifty-five thousand, two hundred eighty-one".