18898514959 has 2 divisors, whose sum is σ = 18898514960. Its totient is φ = 18898514958.

The previous prime is 18898514927. The next prime is 18898515017. The reversal of 18898514959 is 95941589881.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18898514959 - 2⁵ = 18898514927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18898514894 and 18898514903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18898512959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9449257479 + 9449257480.

It is an arithmetic number, because the mean of its divisors is an integer number (9449257480).

Almost surely, 2^18898514959 is an apocalyptic number.

18898514959 is a deficient number, since it is larger than the sum of its proper divisors (1).

18898514959 is an equidigital number, since it uses as much as digits as its factorization.

18898514959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37324800, while the sum is 67.

The spelling of 18898514959 in words is "eighteen billion, eight hundred ninety-eight million, five hundred fourteen thousand, nine hundred fifty-nine".