18338882734 has 16 divisors (see below), whose sum is σ = 27669841920. Its totient is φ = 9115749720.

The previous prime is 18338882717. The next prime is 18338882741. The reversal of 18338882734 is 43728883381.

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, 214407 + ... + 287485.

It is an arithmetic number, because the mean of its divisors is an integer number (1729365120).

Almost surely, 2^18338882734 is an apocalyptic number.

18338882734 is a deficient number, since it is larger than the sum of its proper divisors (9330959186).

18338882734 is a wasteful number, since it uses less digits than its factorization.

18338882734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73815.

The product of its digits is 6193152, while the sum is 55.

The spelling of 18338882734 in words is "eighteen billion, three hundred thirty-eight million, eight hundred eighty-two thousand, seven hundred thirty-four".