12661674793 has 2 divisors, whose sum is σ = 12661674794. Its totient is φ = 12661674792.

The previous prime is 12661674757. The next prime is 12661674811. The reversal of 12661674793 is 39747616621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10292711209 + 2368963584 = 101453^2 + 48672^2 .

It is a cyclic number.

It is not a de Polignac number, because 12661674793 - 2¹³ = 12661666601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12661674793.

It is not a weakly prime, because it can be changed into another prime (12661674703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6330837396 + 6330837397.

It is an arithmetic number, because the mean of its divisors is an integer number (6330837397).

Almost surely, 2^12661674793 is an apocalyptic number.

It is an amenable number.

12661674793 is a deficient number, since it is larger than the sum of its proper divisors (1).

12661674793 is an equidigital number, since it uses as much as digits as its factorization.

12661674793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The spelling of 12661674793 in words is "twelve billion, six hundred sixty-one million, six hundred seventy-four thousand, seven hundred ninety-three".