19079440793 has 4 divisors (see below), whose sum is σ = 21805075200. Its totient is φ = 16353806388.

The previous prime is 19079440763. The next prime is 19079440841. The reversal of 19079440793 is 39704497091.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19079440793 - 2⁸ = 19079440537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19079440703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1362817193 + ... + 1362817206.

It is an arithmetic number, because the mean of its divisors is an integer number (5451268800).

Almost surely, 2^19079440793 is an apocalyptic number.

It is an amenable number.

19079440793 is a deficient number, since it is larger than the sum of its proper divisors (2725634407).

19079440793 is an equidigital number, since it uses as much as digits as its factorization.

19079440793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725634406.

The product of its (nonzero) digits is 1714608, while the sum is 53.

The spelling of 19079440793 in words is "nineteen billion, seventy-nine million, four hundred forty thousand, seven hundred ninety-three".