23686342993 has 2 divisors, whose sum is σ = 23686342994. Its totient is φ = 23686342992.

The previous prime is 23686342961. The next prime is 23686343029. The reversal of 23686342993 is 39924368632.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23412672144 + 273670849 = 153012^2 + 16543^2 .

It is a cyclic number.

It is not a de Polignac number, because 23686342993 - 2⁵ = 23686342961 is a prime.

It is a super-2 number, since 2×23686342993² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23686345993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11843171496 + 11843171497.

It is an arithmetic number, because the mean of its divisors is an integer number (11843171497).

Almost surely, 2^23686342993 is an apocalyptic number.

It is an amenable number.

23686342993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23686342993 is an equidigital number, since it uses as much as digits as its factorization.

23686342993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10077696, while the sum is 55.

It can be divided in two parts, 2368 and 6342993, that added together give a square (6345361 = 2519²).

The spelling of 23686342993 in words is "twenty-three billion, six hundred eighty-six million, three hundred forty-two thousand, nine hundred ninety-three".