23654199913 has 2 divisors, whose sum is σ = 23654199914. Its totient is φ = 23654199912.

The previous prime is 23654199893. The next prime is 23654200007. The reversal of 23654199913 is 31999145632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18472071744 + 5182128169 = 135912^2 + 71987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23654199913 is a prime.

It is not a weakly prime, because it can be changed into another prime (23654190913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827099956 + 11827099957.

It is an arithmetic number, because the mean of its divisors is an integer number (11827099957).

Almost surely, 2^23654199913 is an apocalyptic number.

It is an amenable number.

23654199913 is a deficient number, since it is larger than the sum of its proper divisors (1).

23654199913 is an equidigital number, since it uses as much as digits as its factorization.

23654199913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The spelling of 23654199913 in words is "twenty-three billion, six hundred fifty-four million, one hundred ninety-nine thousand, nine hundred thirteen".