18226320134 has 16 divisors (see below), whose sum is σ = 29827164816. Its totient is φ = 8284058400.

The previous prime is 18226320103. The next prime is 18226320163. The reversal of 18226320134 is 43102362281.

It is a self number, because there is not a number n which added to its sum of digits gives 18226320134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385004 + ... + 429744.

It is an arithmetic number, because the mean of its divisors is an integer number (1864197801).

Almost surely, 2^18226320134 is an apocalyptic number.

18226320134 is a deficient number, since it is larger than the sum of its proper divisors (11600844682).

18226320134 is a wasteful number, since it uses less digits than its factorization.

18226320134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63271.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 18226320134 in words is "eighteen billion, two hundred twenty-six million, three hundred twenty thousand, one hundred thirty-four".