79286428565 has 8 divisors (see below), whose sum is σ = 95149307448. Its totient is φ = 63425414080.

The previous prime is 79286428547. The next prime is 79286428597. The reversal of 79286428565 is 56582468297.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1410828721 + 77875599844 = 37561^2 + 279062^2 .

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

It is not a de Polignac number, because 79286428565 - 2¹⁴ = 79286412181 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79286428498 and 79286428507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370766 + ... + 544095.

It is an arithmetic number, because the mean of its divisors is an integer number (11893663431).

Almost surely, 2^79286428565 is an apocalyptic number.

It is an amenable number.

79286428565 is a deficient number, since it is larger than the sum of its proper divisors (15862878883).

79286428565 is a wasteful number, since it uses less digits than its factorization.

79286428565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932199.

The product of its digits is 58060800, while the sum is 62.

The spelling of 79286428565 in words is "seventy-nine billion, two hundred eighty-six million, four hundred twenty-eight thousand, five hundred sixty-five".