18432242999 has 2 divisors, whose sum is σ = 18432243000. Its totient is φ = 18432242998.

The previous prime is 18432242993. The next prime is 18432243029. The reversal of 18432242999 is 99924223481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18432242999 - 2⁸ = 18432242743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18432242999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18432242993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9216121499 + 9216121500.

It is an arithmetic number, because the mean of its divisors is an integer number (9216121500).

Almost surely, 2^18432242999 is an apocalyptic number.

18432242999 is a deficient number, since it is larger than the sum of its proper divisors (1).

18432242999 is an equidigital number, since it uses as much as digits as its factorization.

18432242999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2239488, while the sum is 53.

The spelling of 18432242999 in words is "eighteen billion, four hundred thirty-two million, two hundred forty-two thousand, nine hundred ninety-nine".