19429412118 has 16 divisors (see below), whose sum is σ = 38860217856. Its totient is φ = 6476238440.

The previous prime is 19429412039. The next prime is 19429412201. The reversal of 19429412118 is 81121492491.

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 19429412118.

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, 244255 + ... + 313877.

It is an arithmetic number, because the mean of its divisors is an integer number (2428763616).

Almost surely, 2^19429412118 is an apocalyptic number.

19429412118 is an abundant number, since it is smaller than the sum of its proper divisors (19430805738).

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

19429412118 is a wasteful number, since it uses less digits than its factorization.

19429412118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116139.

The product of its digits is 41472, while the sum is 42.

The spelling of 19429412118 in words is "nineteen billion, four hundred twenty-nine million, four hundred twelve thousand, one hundred eighteen".