18179749834 has 8 divisors (see below), whose sum is σ = 27312843168. Its totient is φ = 9075468780.

The previous prime is 18179749829. The next prime is 18179749849. The reversal of 18179749834 is 43894797181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7201492 + ... + 7204015.

It is an arithmetic number, because the mean of its divisors is an integer number (3414105396).

Almost surely, 2^18179749834 is an apocalyptic number.

18179749834 is a deficient number, since it is larger than the sum of its proper divisors (9133093334).

18179749834 is a wasteful number, since it uses less digits than its factorization.

18179749834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14406140.

The product of its digits is 12192768, while the sum is 61.

The spelling of 18179749834 in words is "eighteen billion, one hundred seventy-nine million, seven hundred forty-nine thousand, eight hundred thirty-four".