79144894493 has 8 divisors (see below), whose sum is σ = 95771973312. Its totient is φ = 63847982016.

The previous prime is 79144894483. The next prime is 79144894513. The reversal of 79144894493 is 39449844197.

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

It is not a de Polignac number, because 79144894493 - 2⁶ = 79144894429 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 (79144894483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332541455 + ... + 332541692.

It is an arithmetic number, because the mean of its divisors is an integer number (11971496664).

Almost surely, 2^79144894493 is an apocalyptic number.

It is an amenable number.

79144894493 is a deficient number, since it is larger than the sum of its proper divisors (16627078819).

79144894493 is a wasteful number, since it uses less digits than its factorization.

79144894493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665083171.

The product of its digits is 31352832, while the sum is 62.

The spelling of 79144894493 in words is "seventy-nine billion, one hundred forty-four million, eight hundred ninety-four thousand, four hundred ninety-three".