8011280705 has 16 divisors (see below), whose sum is σ = 9666324864. Its totient is φ = 6373879680.

The previous prime is 8011280701. The next prime is 8011280779. The reversal of 8011280705 is 5070821108.

It is a happy number.

It is not a de Polignac number, because 8011280705 - 2² = 8011280701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8011280701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269652 + ... + 2273178.

It is an arithmetic number, because the mean of its divisors is an integer number (604145304).

Almost surely, 2^8011280705 is an apocalyptic number.

It is an amenable number.

8011280705 is a deficient number, since it is larger than the sum of its proper divisors (1655044159).

8011280705 is a wasteful number, since it uses less digits than its factorization.

8011280705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5896.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 8011280705 is about 89505.7579432742. The cubic root of 8011280705 is about 2000.9396172406.

The spelling of 8011280705 in words is "eight billion, eleven million, two hundred eighty thousand, seven hundred five".