19341278345 has 8 divisors (see below), whose sum is σ = 23214665664. Its totient is φ = 15469601584.

The previous prime is 19341278329. The next prime is 19341278371. The reversal of 19341278345 is 54387214391.

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

It is a cyclic number.

It is not a de Polignac number, because 19341278345 - 2⁴ = 19341278329 is a prime.

It is a Duffinian number.

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 19341278345.

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, 402629 + ... + 448098.

It is an arithmetic number, because the mean of its divisors is an integer number (2901833208).

Almost surely, 2^19341278345 is an apocalyptic number.

It is an amenable number.

19341278345 is a deficient number, since it is larger than the sum of its proper divisors (3873387319).

19341278345 is an equidigital number, since it uses as much as digits as its factorization.

19341278345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855279.

The product of its digits is 725760, while the sum is 47.

The spelling of 19341278345 in words is "nineteen billion, three hundred forty-one million, two hundred seventy-eight thousand, three hundred forty-five".