18838534514 has 16 divisors (see below), whose sum is σ = 29489322240. Its totient is φ = 9008841600.

The previous prime is 18838534493. The next prime is 18838534529. The reversal of 18838534514 is 41543583881.

It is a Curzon 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, 861314 + ... + 882914.

It is an arithmetic number, because the mean of its divisors is an integer number (1843082640).

Almost surely, 2^18838534514 is an apocalyptic number.

18838534514 is a deficient number, since it is larger than the sum of its proper divisors (10650787726).

18838534514 is a wasteful number, since it uses less digits than its factorization.

18838534514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40585.

The product of its digits is 1843200, while the sum is 50.

The spelling of 18838534514 in words is "eighteen billion, eight hundred thirty-eight million, five hundred thirty-four thousand, five hundred fourteen".