6778899315 has 96 divisors (see below), whose sum is σ = 12646984896. Its totient is φ = 3480537600.

The previous prime is 6778899307. The next prime is 6778899349. The reversal of 6778899315 is 5139988776.

It is not a de Polignac number, because 6778899315 - 2³ = 6778899307 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4539709 + ... + 4541201.

It is an arithmetic number, because the mean of its divisors is an integer number (131739426).

Almost surely, 2^6778899315 is an apocalyptic number.

6778899315 is a deficient number, since it is larger than the sum of its proper divisors (5868085581).

6778899315 is a wasteful number, since it uses less digits than its factorization.

6778899315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651 (or 1639 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 6778899315 is about 82334.0714103220. The cubic root of 6778899315 is about 1892.5748352599.

The spelling of 6778899315 in words is "six billion, seven hundred seventy-eight million, eight hundred ninety-nine thousand, three hundred fifteen".