12392040989 has 2 divisors, whose sum is σ = 12392040990. Its totient is φ = 12392040988.

The previous prime is 12392040971. The next prime is 12392041007. The reversal of 12392040989 is 98904029321.

It is a balanced prime because it is at equal distance from previous prime (12392040971) and next prime (12392041007).

It can be written as a sum of positive squares in only one way, i.e., 12356100964 + 35940025 = 111158^2 + 5995^2 .

It is a cyclic number.

It is not a de Polignac number, because 12392040989 - 2²⁰ = 12390992413 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12392040919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196020494 + 6196020495.

It is an arithmetic number, because the mean of its divisors is an integer number (6196020495).

Almost surely, 2^12392040989 is an apocalyptic number.

It is an amenable number.

12392040989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12392040989 is an equidigital number, since it uses as much as digits as its factorization.

12392040989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 12392040989 in words is "twelve billion, three hundred ninety-two million, forty thousand, nine hundred eighty-nine".