23661714397 has 2 divisors, whose sum is σ = 23661714398. Its totient is φ = 23661714396.

The previous prime is 23661714389. The next prime is 23661714407. The reversal of 23661714397 is 79341716632.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18421547076 + 5240167321 = 135726^2 + 72389^2 .

It is a cyclic number.

It is not a de Polignac number, because 23661714397 - 2³ = 23661714389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23661714397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23661714697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11830857198 + 11830857199.

It is an arithmetic number, because the mean of its divisors is an integer number (11830857199).

Almost surely, 2^23661714397 is an apocalyptic number.

It is an amenable number.

23661714397 is a deficient number, since it is larger than the sum of its proper divisors (1).

23661714397 is an equidigital number, since it uses as much as digits as its factorization.

23661714397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The spelling of 23661714397 in words is "twenty-three billion, six hundred sixty-one million, seven hundred fourteen thousand, three hundred ninety-seven".