18193582734 has 32 divisors (see below), whose sum is σ = 38313578880. Its totient is φ = 5743647072.

The previous prime is 18193582711. The next prime is 18193582747. The reversal of 18193582734 is 43728539181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397477 + ... + 440879.

It is an arithmetic number, because the mean of its divisors is an integer number (1197299340).

Almost surely, 2^18193582734 is an apocalyptic number.

18193582734 is an abundant number, since it is smaller than the sum of its proper divisors (20119996146).

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

18193582734 is a wasteful number, since it uses less digits than its factorization.

18193582734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47104.

The product of its digits is 1451520, while the sum is 51.

The spelling of 18193582734 in words is "eighteen billion, one hundred ninety-three million, five hundred eighty-two thousand, seven hundred thirty-four".