18412829899 has 2 divisors, whose sum is σ = 18412829900. Its totient is φ = 18412829898.

The previous prime is 18412829891. The next prime is 18412829971. The reversal of 18412829899 is 99892821481.

It is a weak prime.

It is an emirp because it is prime and its reverse (99892821481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18412829899 - 2³ = 18412829891 is a prime.

It is not a weakly prime, because it can be changed into another prime (18412829891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9206414949 + 9206414950.

It is an arithmetic number, because the mean of its divisors is an integer number (9206414950).

Almost surely, 2^18412829899 is an apocalyptic number.

18412829899 is a deficient number, since it is larger than the sum of its proper divisors (1).

18412829899 is an equidigital number, since it uses as much as digits as its factorization.

18412829899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5971968, while the sum is 61.

The spelling of 18412829899 in words is "eighteen billion, four hundred twelve million, eight hundred twenty-nine thousand, eight hundred ninety-nine".