18854960659 has 2 divisors, whose sum is σ = 18854960660. Its totient is φ = 18854960658.

The previous prime is 18854960629. The next prime is 18854960693. The reversal of 18854960659 is 95606945881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18854960659 - 2⁹ = 18854960147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18854960597 and 18854960606.

It is not a weakly prime, because it can be changed into another prime (18854960629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9427480329 + 9427480330.

It is an arithmetic number, because the mean of its divisors is an integer number (9427480330).

Almost surely, 2^18854960659 is an apocalyptic number.

18854960659 is a deficient number, since it is larger than the sum of its proper divisors (1).

18854960659 is an equidigital number, since it uses as much as digits as its factorization.

18854960659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 18854960659 in words is "eighteen billion, eight hundred fifty-four million, nine hundred sixty thousand, six hundred fifty-nine".