19159244493 has 8 divisors (see below), whose sum is σ = 25853438688. Its totient is φ = 12618939984.

The previous prime is 19159244483. The next prime is 19159244501. The reversal of 19159244493 is 39444295191.

It is a happy number.

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

It is not a de Polignac number, because 19159244493 - 2²¹ = 19157147341 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19159244473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38472130 + ... + 38472627.

It is an arithmetic number, because the mean of its divisors is an integer number (3231679836).

Almost surely, 2^19159244493 is an apocalyptic number.

It is an amenable number.

19159244493 is a deficient number, since it is larger than the sum of its proper divisors (6694194195).

19159244493 is an equidigital number, since it uses as much as digits as its factorization.

19159244493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76944843.

The product of its digits is 1399680, while the sum is 51.

The spelling of 19159244493 in words is "nineteen billion, one hundred fifty-nine million, two hundred forty-four thousand, four hundred ninety-three".