18829431799 has 2 divisors, whose sum is σ = 18829431800. Its totient is φ = 18829431798.

The previous prime is 18829431791. The next prime is 18829431811. The reversal of 18829431799 is 99713492881.

It is a weak prime.

It is an emirp because it is prime and its reverse (99713492881) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18829431799 - 2³ = 18829431791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18829431791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9414715899 + 9414715900.

It is an arithmetic number, because the mean of its divisors is an integer number (9414715900).

Almost surely, 2^18829431799 is an apocalyptic number.

18829431799 is a deficient number, since it is larger than the sum of its proper divisors (1).

18829431799 is an equidigital number, since it uses as much as digits as its factorization.

18829431799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 61.

The spelling of 18829431799 in words is "eighteen billion, eight hundred twenty-nine million, four hundred thirty-one thousand, seven hundred ninety-nine".