8505696879 has 12 divisors (see below), whose sum is σ = 12331683000. Its totient is φ = 5649383184.

The previous prime is 8505696877. The next prime is 8505696893. The reversal of 8505696879 is 9786965058.

8505696879 is a `hidden beast` number, since 8 + 5 + 0 + 569 + 68 + 7 + 9 = 666.

It is not a de Polignac number, because 8505696879 - 2¹ = 8505696877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505696877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1754229 + ... + 1759070.

It is an arithmetic number, because the mean of its divisors is an integer number (1027640250).

Almost surely, 2^8505696879 is an apocalyptic number.

8505696879 is a deficient number, since it is larger than the sum of its proper divisors (3825986121).

8505696879 is a wasteful number, since it uses less digits than its factorization.

8505696879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513574 (or 3513571 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 63.

The square root of 8505696879 is about 92226.3350621719. The cubic root of 8505696879 is about 2041.2833843382.

The spelling of 8505696879 in words is "eight billion, five hundred five million, six hundred ninety-six thousand, eight hundred seventy-nine".