12992389609 has 2 divisors, whose sum is σ = 12992389610. Its totient is φ = 12992389608.

The previous prime is 12992389577. The next prime is 12992389717. The reversal of 12992389609 is 90698329921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9332139609 + 3660250000 = 96603^2 + 60500^2 .

It is an emirp because it is prime and its reverse (90698329921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12992389609 - 2⁵ = 12992389577 is a prime.

It is not a weakly prime, because it can be changed into another prime (12992386609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6496194804 + 6496194805.

It is an arithmetic number, because the mean of its divisors is an integer number (6496194805).

Almost surely, 2^12992389609 is an apocalyptic number.

It is an amenable number.

12992389609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12992389609 is an equidigital number, since it uses as much as digits as its factorization.

12992389609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 12992389609 in words is "twelve billion, nine hundred ninety-two million, three hundred eighty-nine thousand, six hundred nine".