12174785993 has 2 divisors, whose sum is σ = 12174785994. Its totient is φ = 12174785992.

The previous prime is 12174785981. The next prime is 12174786007. The reversal of 12174785993 is 39958747121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11455849024 + 718936969 = 107032^2 + 26813^2 .

It is a cyclic number.

It is not a de Polignac number, because 12174785993 - 2⁸ = 12174785737 is a prime.

It is not a weakly prime, because it can be changed into another prime (12174785963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6087392996 + 6087392997.

It is an arithmetic number, because the mean of its divisors is an integer number (6087392997).

Almost surely, 2^12174785993 is an apocalyptic number.

It is an amenable number.

12174785993 is a deficient number, since it is larger than the sum of its proper divisors (1).

12174785993 is an equidigital number, since it uses as much as digits as its factorization.

12174785993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The spelling of 12174785993 in words is "twelve billion, one hundred seventy-four million, seven hundred eighty-five thousand, nine hundred ninety-three".