18272434134 has 32 divisors (see below), whose sum is σ = 38142881280. Its totient is φ = 5824602432.

The previous prime is 18272434133. The next prime is 18272434151. The reversal of 18272434134 is 43143427281.

It is a junction number, because it is equal to n+sod(n) for n = 18272434092 and 18272434101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18272434133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672399 + ... + 699045.

It is an arithmetic number, because the mean of its divisors is an integer number (1191965040).

Almost surely, 2^18272434134 is an apocalyptic number.

18272434134 is an abundant number, since it is smaller than the sum of its proper divisors (19870447146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18272434134 is a wasteful number, since it uses less digits than its factorization.

18272434134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31644.

The product of its digits is 129024, while the sum is 39.

The spelling of 18272434134 in words is "eighteen billion, two hundred seventy-two million, four hundred thirty-four thousand, one hundred thirty-four".