18849270199 has 2 divisors, whose sum is σ = 18849270200. Its totient is φ = 18849270198.

The previous prime is 18849270179. The next prime is 18849270299. The reversal of 18849270199 is 99107294881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18849270199 - 2¹³ = 18849262007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18849270179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9424635099 + 9424635100.

It is an arithmetic number, because the mean of its divisors is an integer number (9424635100).

Almost surely, 2^18849270199 is an apocalyptic number.

18849270199 is a deficient number, since it is larger than the sum of its proper divisors (1).

18849270199 is an equidigital number, since it uses as much as digits as its factorization.

18849270199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 58.

The spelling of 18849270199 in words is "eighteen billion, eight hundred forty-nine million, two hundred seventy thousand, one hundred ninety-nine".