8279013573 has 12 divisors (see below), whose sum is σ = 11960491660. Its totient is φ = 5518457856.

The previous prime is 8279013571. The next prime is 8279013581. The reversal of 8279013573 is 3753109728.

It is a happy number.

8279013573 is a `hidden beast` number, since 8 + 2 + 79 + 0 + 1 + 3 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4447155969 + 3831857604 = 66687^2 + 61902^2 .

It is not a de Polignac number, because 8279013573 - 2¹ = 8279013571 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 (8279013571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11686 + ... + 129207.

Almost surely, 2^8279013573 is an apocalyptic number.

It is an amenable number.

8279013573 is a deficient number, since it is larger than the sum of its proper divisors (3681478087).

8279013573 is a wasteful number, since it uses less digits than its factorization.

8279013573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147428 (or 147425 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 8279013573 is about 90989.0849113233. The cubic root of 8279013573 is about 2022.9859422540.

The spelling of 8279013573 in words is "eight billion, two hundred seventy-nine million, thirteen thousand, five hundred seventy-three".