79144894494 has 24 divisors (see below), whose sum is σ = 174040019400. Its totient is φ = 25987875408.

The previous prime is 79144894483. The next prime is 79144894513. The reversal of 79144894494 is 49449844197.

79144894494 is a `hidden beast` number, since 7 + 9 + 14 + 48 + 94 + 494 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 32811769 + ... + 32814180.

It is an arithmetic number, because the mean of its divisors is an integer number (7251667475).

Almost surely, 2^79144894494 is an apocalyptic number.

79144894494 is an abundant number, since it is smaller than the sum of its proper divisors (94895124906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79144894494 is a wasteful number, since it uses less digits than its factorization.

79144894494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65626024 (or 65626021 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 79144894494 in words is "seventy-nine billion, one hundred forty-four million, eight hundred ninety-four thousand, four hundred ninety-four".