8011677778 has 8 divisors (see below), whose sum is σ = 12941941068. Its totient is φ = 3697697424.

The previous prime is 8011677757. The next prime is 8011677781. The reversal of 8011677778 is 8777761108.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7869996369 + 141681409 = 88713^2 + 11903^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154070701 + ... + 154070752.

Almost surely, 2^8011677778 is an apocalyptic number.

8011677778 is a deficient number, since it is larger than the sum of its proper divisors (4930263290).

8011677778 is a wasteful number, since it uses less digits than its factorization.

8011677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308141468.

The product of its (nonzero) digits is 921984, while the sum is 52.

The square root of 8011677778 is about 89507.9760580028. The cubic root of 8011677778 is about 2000.9726750416.

The spelling of 8011677778 in words is "eight billion, eleven million, six hundred seventy-seven thousand, seven hundred seventy-eight".