319431734018 has 8 divisors (see below), whose sum is σ = 479153454912. Its totient is φ = 159713915716.

The previous prime is 319431733969. The next prime is 319431734029. The reversal of 319431734018 is 810437134913.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 319431734018.

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, 761630 + ... + 1104057.

It is an arithmetic number, because the mean of its divisors is an integer number (59894181864).

Almost surely, 2^319431734018 is an apocalyptic number.

319431734018 is a deficient number, since it is larger than the sum of its proper divisors (159721720894).

319431734018 is a wasteful number, since it uses less digits than its factorization.

319431734018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1951296.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 319431734018 in words is "three hundred nineteen billion, four hundred thirty-one million, seven hundred thirty-four thousand, eighteen".