12693459246989 has 2 divisors, whose sum is σ = 12693459246990. Its totient is φ = 12693459246988.

The previous prime is 12693459246851. The next prime is 12693459246997. The reversal of 12693459246989 is 98964295439621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12659719802500 + 33739444489 = 3558050^2 + 183683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12693459246989 is a prime.

It is a super-2 number, since 2×12693459246989² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12693459240989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6346729623494 + 6346729623495.

It is an arithmetic number, because the mean of its divisors is an integer number (6346729623495).

Almost surely, 2^{12693459246989} is an apocalyptic number.

It is an amenable number.

12693459246989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12693459246989 is an equidigital number, since it uses as much as digits as its factorization.

12693459246989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1813985280, while the sum is 77.

The spelling of 12693459246989 in words is "twelve trillion, six hundred ninety-three billion, four hundred fifty-nine million, two hundred forty-six thousand, nine hundred eighty-nine".