12642887705023 has 2 divisors, whose sum is σ = 12642887705024. Its totient is φ = 12642887705022.

The previous prime is 12642887705017. The next prime is 12642887705027. The reversal of 12642887705023 is 32050778824621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12642887705023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642887705027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321443852511 + 6321443852512.

It is an arithmetic number, because the mean of its divisors is an integer number (6321443852512).

Almost surely, 2^{12642887705023} is an apocalyptic number.

12642887705023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642887705023 is an equidigital number, since it uses as much as digits as its factorization.

12642887705023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9031680, while the sum is 55.

The spelling of 12642887705023 in words is "twelve trillion, six hundred forty-two billion, eight hundred eighty-seven million, seven hundred five thousand, twenty-three".