19929120319 has 8 divisors (see below), whose sum is σ = 20879042048. Its totient is φ = 18998389080.

The previous prime is 19929120313. The next prime is 19929120329. The reversal of 19929120319 is 91302192991.

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 19929120319 - 2⁵ = 19929120287 is a prime.

It is a super-2 number, since 2×19929120319² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19929120313) 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, 4795497 + ... + 4799650.

It is an arithmetic number, because the mean of its divisors is an integer number (2609880256).

Almost surely, 2^19929120319 is an apocalyptic number.

19929120319 is a deficient number, since it is larger than the sum of its proper divisors (949921729).

19929120319 is an equidigital number, since it uses as much as digits as its factorization.

19929120319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9595245.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 19929120319 in words is "nineteen billion, nine hundred twenty-nine million, one hundred twenty thousand, three hundred nineteen".