18249855059 has 2 divisors, whose sum is σ = 18249855060. Its totient is φ = 18249855058.

The previous prime is 18249854971. The next prime is 18249855089. The reversal of 18249855059 is 95055894281.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18249855059 - 2²⁰ = 18248806483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18249854995 and 18249855013.

It is not a weakly prime, because it can be changed into another prime (18249855089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9124927529 + 9124927530.

It is an arithmetic number, because the mean of its divisors is an integer number (9124927530).

Almost surely, 2^18249855059 is an apocalyptic number.

18249855059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18249855059 is an equidigital number, since it uses as much as digits as its factorization.

18249855059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184000, while the sum is 56.

The spelling of 18249855059 in words is "eighteen billion, two hundred forty-nine million, eight hundred fifty-five thousand, fifty-nine".