23449202681 has 2 divisors, whose sum is σ = 23449202682. Its totient is φ = 23449202680.

The previous prime is 23449202669. The next prime is 23449202723. The reversal of 23449202681 is 18620294432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17587003456 + 5862199225 = 132616^2 + 76565^2 .

It is a cyclic number.

It is not a de Polignac number, because 23449202681 - 2⁶ = 23449202617 is a prime.

It is a super-2 number, since 2×23449202681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23449202641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11724601340 + 11724601341.

It is an arithmetic number, because the mean of its divisors is an integer number (11724601341).

Almost surely, 2^23449202681 is an apocalyptic number.

It is an amenable number.

23449202681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23449202681 is an equidigital number, since it uses as much as digits as its factorization.

23449202681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 23449202681 in words is "twenty-three billion, four hundred forty-nine million, two hundred two thousand, six hundred eighty-one".