12162242639 has 2 divisors, whose sum is σ = 12162242640. Its totient is φ = 12162242638.

The previous prime is 12162242621. The next prime is 12162242669. The reversal of 12162242639 is 93624226121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12162242639 - 2²⁰ = 12161194063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12162242669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081121319 + 6081121320.

It is an arithmetic number, because the mean of its divisors is an integer number (6081121320).

Almost surely, 2^12162242639 is an apocalyptic number.

12162242639 is a deficient number, since it is larger than the sum of its proper divisors (1).

12162242639 is an equidigital number, since it uses as much as digits as its factorization.

12162242639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The spelling of 12162242639 in words is "twelve billion, one hundred sixty-two million, two hundred forty-two thousand, six hundred thirty-nine".