23985638353 has 2 divisors, whose sum is σ = 23985638354. Its totient is φ = 23985638352.

The previous prime is 23985638309. The next prime is 23985638363. The reversal of 23985638353 is 35383658932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20508531264 + 3477107089 = 143208^2 + 58967^2 .

It is a cyclic number.

It is not a de Polignac number, because 23985638353 - 2¹³ = 23985630161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23985638294 and 23985638303.

It is not a weakly prime, because it can be changed into another prime (23985638363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11992819176 + 11992819177.

It is an arithmetic number, because the mean of its divisors is an integer number (11992819177).

Almost surely, 2^23985638353 is an apocalyptic number.

It is an amenable number.

23985638353 is a deficient number, since it is larger than the sum of its proper divisors (1).

23985638353 is an equidigital number, since it uses as much as digits as its factorization.

23985638353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13996800, while the sum is 55.

The spelling of 23985638353 in words is "twenty-three billion, nine hundred eighty-five million, six hundred thirty-eight thousand, three hundred fifty-three".