18872269799 has 2 divisors, whose sum is σ = 18872269800. Its totient is φ = 18872269798.

The previous prime is 18872269751. The next prime is 18872269811. The reversal of 18872269799 is 99796227881.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18872269799 - 2²⁸ = 18603834343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18872263799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9436134899 + 9436134900.

It is an arithmetic number, because the mean of its divisors is an integer number (9436134900).

Almost surely, 2^18872269799 is an apocalyptic number.

18872269799 is a deficient number, since it is larger than the sum of its proper divisors (1).

18872269799 is an equidigital number, since it uses as much as digits as its factorization.

18872269799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 68.

The spelling of 18872269799 in words is "eighteen billion, eight hundred seventy-two million, two hundred sixty-nine thousand, seven hundred ninety-nine".