19249285117 has 8 divisors (see below), whose sum is σ = 19386511200. Its totient is φ = 19112166480.

The previous prime is 19249285109. The next prime is 19249285157. The reversal of 19249285117 is 71158294291.

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 19249285117 - 2³ = 19249285109 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 (19249285157) 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, 351598 + ... + 402640.

It is an arithmetic number, because the mean of its divisors is an integer number (2423313900).

Almost surely, 2^19249285117 is an apocalyptic number.

It is an amenable number.

19249285117 is a deficient number, since it is larger than the sum of its proper divisors (137226083).

19249285117 is a wasteful number, since it uses less digits than its factorization.

19249285117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53723.

The product of its digits is 362880, while the sum is 49.

The spelling of 19249285117 in words is "nineteen billion, two hundred forty-nine million, two hundred eighty-five thousand, one hundred seventeen".