23634530081 has 2 divisors, whose sum is σ = 23634530082. Its totient is φ = 23634530080.

The previous prime is 23634530069. The next prime is 23634530173. The reversal of 23634530081 is 18003543632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13617723025 + 10016807056 = 116695^2 + 100084^2 .

It is a cyclic number.

It is not a de Polignac number, because 23634530081 - 2¹⁴ = 23634513697 is a prime.

It is a super-2 number, since 2×23634530081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23634530011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11817265040 + 11817265041.

It is an arithmetic number, because the mean of its divisors is an integer number (11817265041).

Almost surely, 2^23634530081 is an apocalyptic number.

It is an amenable number.

23634530081 is a deficient number, since it is larger than the sum of its proper divisors (1).

23634530081 is an equidigital number, since it uses as much as digits as its factorization.

23634530081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 23634530081 in words is "twenty-three billion, six hundred thirty-four million, five hundred thirty thousand, eighty-one".