19274336418 has 32 divisors (see below), whose sum is σ = 39285423360. Its totient is φ = 6303024000.

The previous prime is 19274336413. The next prime is 19274336429. The reversal of 19274336418 is 81463347291.

It is not an unprimeable number, because it can be changed into a prime (19274336413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55083 + ... + 203918.

It is an arithmetic number, because the mean of its divisors is an integer number (1227669480).

Almost surely, 2^19274336418 is an apocalyptic number.

19274336418 is an abundant number, since it is smaller than the sum of its proper divisors (20011086942).

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

19274336418 is a wasteful number, since it uses less digits than its factorization.

19274336418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259242.

The product of its digits is 870912, while the sum is 48.

The spelling of 19274336418 in words is "nineteen billion, two hundred seventy-four million, three hundred thirty-six thousand, four hundred eighteen".