8011778013 has 16 divisors (see below), whose sum is σ = 12494001600. Its totient is φ = 5060070000.

The previous prime is 8011777999. The next prime is 8011778023. The reversal of 8011778013 is 3108771108.

It is not a de Polignac number, because 8011778013 - 2¹⁷ = 8011646941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8011778023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7808238 + ... + 7809263.

It is an arithmetic number, because the mean of its divisors is an integer number (780875100).

Almost surely, 2^8011778013 is an apocalyptic number.

It is an amenable number.

8011778013 is a deficient number, since it is larger than the sum of its proper divisors (4482223587).

8011778013 is a wasteful number, since it uses less digits than its factorization.

8011778013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15617529 (or 15617523 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The square root of 8011778013 is about 89508.5359784194. The cubic root of 8011778013 is about 2000.9810198047.

The spelling of 8011778013 in words is "eight billion, eleven million, seven hundred seventy-eight thousand, thirteen".