23646265345951 has 2 divisors, whose sum is σ = 23646265345952. Its totient is φ = 23646265345950.

The previous prime is 23646265345949. The next prime is 23646265345961. The reversal of 23646265345951 is 15954356264632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23646265345951 - 2¹ = 23646265345949 is a prime.

It is a super-2 number, since 2×23646265345951² (a number of 28 digits) contains 22 as substring.

Together with 23646265345949, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23646265345951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23646265345961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11823132672975 + 11823132672976.

It is an arithmetic number, because the mean of its divisors is an integer number (11823132672976).

Almost surely, 2^{23646265345951} is an apocalyptic number.

23646265345951 is a deficient number, since it is larger than the sum of its proper divisors (1).

23646265345951 is an equidigital number, since it uses as much as digits as its factorization.

23646265345951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968000, while the sum is 61.

The spelling of 23646265345951 in words is "twenty-three trillion, six hundred forty-six billion, two hundred sixty-five million, three hundred forty-five thousand, nine hundred fifty-one".