18759685099 has 2 divisors, whose sum is σ = 18759685100. Its totient is φ = 18759685098.

The previous prime is 18759685073. The next prime is 18759685171. The reversal of 18759685099 is 99058695781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18759685099 - 2⁵ = 18759685067 is a prime.

It is not a weakly prime, because it can be changed into another prime (18759685019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9379842549 + 9379842550.

It is an arithmetic number, because the mean of its divisors is an integer number (9379842550).

Almost surely, 2^18759685099 is an apocalyptic number.

18759685099 is a deficient number, since it is larger than the sum of its proper divisors (1).

18759685099 is an equidigital number, since it uses as much as digits as its factorization.

18759685099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48988800, while the sum is 67.

The spelling of 18759685099 in words is "eighteen billion, seven hundred fifty-nine million, six hundred eighty-five thousand, ninety-nine".