8079091061905 has 4 divisors (see below), whose sum is σ = 9694909274292. Its totient is φ = 6463272849520.

The previous prime is 8079091061857. The next prime is 8079091061971. The reversal of 8079091061905 is 5091601909708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5743121183361 + 2335969878544 = 2396481^2 + 1528388^2 .

It is not a de Polignac number, because 8079091061905 - 2¹¹ = 8079091059857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807909106186 + ... + 807909106195.

It is an arithmetic number, because the mean of its divisors is an integer number (2423727318573).

Almost surely, 2^{8079091061905} is an apocalyptic number.

It is an amenable number.

8079091061905 is a deficient number, since it is larger than the sum of its proper divisors (1615818212387).

8079091061905 is a wasteful number, since it uses less digits than its factorization.

8079091061905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615818212386.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 8079091061905 in words is "eight trillion, seventy-nine billion, ninety-one million, sixty-one thousand, nine hundred five".