18114889259263 has 4 divisors (see below), whose sum is σ = 18500312435040. Its totient is φ = 17729466083488.

The previous prime is 18114889259209. The next prime is 18114889259267. The reversal of 18114889259263 is 36295298841181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18114889259263 - 2³⁷ = 17977450305791 is a prime.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18114889259267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192711587818 + ... + 192711587911.

It is an arithmetic number, because the mean of its divisors is an integer number (4625078108760).

Almost surely, 2^{18114889259263} is an apocalyptic number.

18114889259263 is a deficient number, since it is larger than the sum of its proper divisors (385423175777).

18114889259263 is an equidigital number, since it uses as much as digits as its factorization.

18114889259263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385423175776.

The product of its digits is 59719680, while the sum is 67.

The spelling of 18114889259263 in words is "eighteen trillion, one hundred fourteen billion, eight hundred eighty-nine million, two hundred fifty-nine thousand, two hundred sixty-three".