8278996805 has 8 divisors (see below), whose sum is σ = 9957742872. Its totient is φ = 6607899648.

The previous prime is 8278996751. The next prime is 8278996807. The reversal of 8278996805 is 5086998728.

It can be written as a sum of positive squares in 4 ways, for example, as 605061604 + 7673935201 = 24598^2 + 87601^2 .

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 8278996805 - 2¹⁴ = 8278980421 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 (8278996807) 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, 1909844 + ... + 1914173.

It is an arithmetic number, because the mean of its divisors is an integer number (1244717859).

Almost surely, 2^8278996805 is an apocalyptic number.

It is an amenable number.

8278996805 is a deficient number, since it is larger than the sum of its proper divisors (1678746067).

8278996805 is a wasteful number, since it uses less digits than its factorization.

8278996805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824455.

The product of its (nonzero) digits is 17418240, while the sum is 62.

The square root of 8278996805 is about 90988.9927683563. The cubic root of 8278996805 is about 2022.9845764934.

The spelling of 8278996805 in words is "eight billion, two hundred seventy-eight million, nine hundred ninety-six thousand, eight hundred five".