79355794589 has 8 divisors (see below), whose sum is σ = 84063287160. Its totient is φ = 74652691456.

The previous prime is 79355794577. The next prime is 79355794621. The reversal of 79355794589 is 98549755397.

It can be written as a sum of positive squares in 4 ways, for example, as 8662024900 + 70693769689 = 93070^2 + 265883^2 .

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 79355794589 - 2²⁸ = 79087359133 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 (79355797589) 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, 1060094 + ... + 1132479.

It is an arithmetic number, because the mean of its divisors is an integer number (10507910895).

Almost surely, 2^79355794589 is an apocalyptic number.

It is an amenable number.

79355794589 is a deficient number, since it is larger than the sum of its proper divisors (4707492571).

79355794589 is a wasteful number, since it uses less digits than its factorization.

79355794589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194719.

The product of its digits is 428652000, while the sum is 71.

The spelling of 79355794589 in words is "seventy-nine billion, three hundred fifty-five million, seven hundred ninety-four thousand, five hundred eighty-nine".