18419250299 has 2 divisors, whose sum is σ = 18419250300. Its totient is φ = 18419250298.

The previous prime is 18419250233. The next prime is 18419250323. The reversal of 18419250299 is 99205291481.

It is a strong prime.

It is an emirp because it is prime and its reverse (99205291481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18419250299 - 2²⁰ = 18418201723 is a prime.

It is not a weakly prime, because it can be changed into another prime (18419250799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9209625149 + 9209625150.

It is an arithmetic number, because the mean of its divisors is an integer number (9209625150).

Almost surely, 2^18419250299 is an apocalyptic number.

18419250299 is a deficient number, since it is larger than the sum of its proper divisors (1).

18419250299 is an equidigital number, since it uses as much as digits as its factorization.

18419250299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 18419250299 in words is "eighteen billion, four hundred nineteen million, two hundred fifty thousand, two hundred ninety-nine".