19979314873 has 8 divisors (see below), whose sum is σ = 22834374080. Its totient is φ = 17124473520.

The previous prime is 19979314867. The next prime is 19979314909. The reversal of 19979314873 is 37841397991.

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

It is not a de Polignac number, because 19979314873 - 2⁵ = 19979314841 is a prime.

It is a super-2 number, since 2×19979314873² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19979314273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274723 + ... + 339751.

It is an arithmetic number, because the mean of its divisors is an integer number (2854296760).

Almost surely, 2^19979314873 is an apocalyptic number.

It is an amenable number.

19979314873 is a deficient number, since it is larger than the sum of its proper divisors (2855059207).

19979314873 is an equidigital number, since it uses as much as digits as its factorization.

19979314873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108927.

The product of its digits is 10287648, while the sum is 61.

The spelling of 19979314873 in words is "nineteen billion, nine hundred seventy-nine million, three hundred fourteen thousand, eight hundred seventy-three".