19489115113 has 8 divisors (see below), whose sum is σ = 21900811968. Its totient is φ = 17207780304.

The previous prime is 19489115099. The next prime is 19489115131. The reversal of 19489115113 is 31151198491.

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

It is not a de Polignac number, because 19489115113 - 2³³ = 10899180521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19489115113.

It is not an unprimeable number, because it can be changed into a prime (19489115183) 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, 32590195 + ... + 32590792.

It is an arithmetic number, because the mean of its divisors is an integer number (2737601496).

Almost surely, 2^19489115113 is an apocalyptic number.

19489115113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19489115113 is a deficient number, since it is larger than the sum of its proper divisors (2411696855).

19489115113 is a wasteful number, since it uses less digits than its factorization.

19489115113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65181023.

The product of its digits is 38880, while the sum is 43.

The spelling of 19489115113 in words is "nineteen billion, four hundred eighty-nine million, one hundred fifteen thousand, one hundred thirteen".