6815802318 has 16 divisors (see below), whose sum is σ = 14680189776. Its totient is φ = 2097169920.

The previous prime is 6815802317. The next prime is 6815802377. The reversal of 6815802318 is 8132085186.

It is a super-2 number, since 2×6815802318² = 92910322476108346248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6815802318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6815802317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43690963 + ... + 43691118.

It is an arithmetic number, because the mean of its divisors is an integer number (917511861).

Almost surely, 2^6815802318 is an apocalyptic number.

6815802318 is an abundant number, since it is smaller than the sum of its proper divisors (7864387458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6815802318 is a wasteful number, since it uses less digits than its factorization.

6815802318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87382099.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 6815802318 is about 82557.8725379960. The cubic root of 6815802318 is about 1896.0028913814.

The spelling of 6815802318 in words is "six billion, eight hundred fifteen million, eight hundred two thousand, three hundred eighteen".