18719932913343 has 6 divisors (see below), whose sum is σ = 27039903097064. Its totient is φ = 12479955275556.

The previous prime is 18719932913333. The next prime is 18719932913369. The reversal of 18719932913343 is 34331923991781.

18719932913343 is a `hidden beast` number, since 1 + 8 + 7 + 1 + 9 + 9 + 3 + 291 + 334 + 3 = 666.

It is not a de Polignac number, because 18719932913343 - 2²⁵ = 18719899358911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18719932913333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1039996272955 + ... + 1039996272972.

Almost surely, 2^{18719932913343} is an apocalyptic number.

18719932913343 is a deficient number, since it is larger than the sum of its proper divisors (8319970183721).

18719932913343 is a wasteful number, since it uses less digits than its factorization.

18719932913343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079992545933 (or 2079992545930 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

The spelling of 18719932913343 in words is "eighteen trillion, seven hundred nineteen billion, nine hundred thirty-two million, nine hundred thirteen thousand, three hundred forty-three".