19718839214 has 16 divisors (see below), whose sum is σ = 29795162208. Its totient is φ = 9787239072.

The previous prime is 19718839207. The next prime is 19718839243. The reversal of 19718839214 is 41293881791.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 304244 + ... + 363320.

It is an arithmetic number, because the mean of its divisors is an integer number (1862197638).

Almost surely, 2^19718839214 is an apocalyptic number.

19718839214 is a deficient number, since it is larger than the sum of its proper divisors (10076322994).

19718839214 is a wasteful number, since it uses less digits than its factorization.

19718839214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60299.

The product of its digits is 870912, while the sum is 53.

The spelling of 19718839214 in words is "nineteen billion, seven hundred eighteen million, eight hundred thirty-nine thousand, two hundred fourteen".