12606052991893 has 2 divisors, whose sum is σ = 12606052991894. Its totient is φ = 12606052991892.

The previous prime is 12606052991843. The next prime is 12606052991911. The reversal of 12606052991893 is 39819925060621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9441841726564 + 3164211265329 = 3072758^2 + 1778823^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12606052991893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12606052991813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303026495946 + 6303026495947.

It is an arithmetic number, because the mean of its divisors is an integer number (6303026495947).

Almost surely, 2^{12606052991893} is an apocalyptic number.

It is an amenable number.

12606052991893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12606052991893 is an equidigital number, since it uses as much as digits as its factorization.

12606052991893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 12606052991893 in words is "twelve trillion, six hundred six billion, fifty-two million, nine hundred ninety-one thousand, eight hundred ninety-three".