18500000059 has 2 divisors, whose sum is σ = 18500000060. Its totient is φ = 18500000058.

The previous prime is 18500000023. The next prime is 18500000063. The reversal of 18500000059 is 95000000581.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18500000059 - 2²³ = 18491611451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18499999982 and 18500000036.

It is not a weakly prime, because it can be changed into another prime (18500000069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9250000029 + 9250000030.

It is an arithmetic number, because the mean of its divisors is an integer number (9250000030).

Almost surely, 2^18500000059 is an apocalyptic number.

18500000059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18500000059 is an equidigital number, since it uses as much as digits as its factorization.

18500000059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 28.

The spelling of 18500000059 in words is "eighteen billion, five hundred million, fifty-nine", and thus it is an aban number.