18965055299 has 2 divisors, whose sum is σ = 18965055300. Its totient is φ = 18965055298.

The previous prime is 18965055259. The next prime is 18965055323. The reversal of 18965055299 is 99255056981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18965055299 - 2³² = 14670088003 is a prime.

It is not a weakly prime, because it can be changed into another prime (18965055259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9482527649 + 9482527650.

It is an arithmetic number, because the mean of its divisors is an integer number (9482527650).

Almost surely, 2^18965055299 is an apocalyptic number.

18965055299 is a deficient number, since it is larger than the sum of its proper divisors (1).

18965055299 is an equidigital number, since it uses as much as digits as its factorization.

18965055299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748000, while the sum is 59.

The spelling of 18965055299 in words is "eighteen billion, nine hundred sixty-five million, fifty-five thousand, two hundred ninety-nine".