7818068814 has 16 divisors (see below), whose sum is σ = 16459092480. Its totient is φ = 2468863800.

The previous prime is 7818068773. The next prime is 7818068821. The reversal of 7818068814 is 4188608187.

It is a super-2 number, since 2×7818068814² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34289662 + ... + 34289889.

It is an arithmetic number, because the mean of its divisors is an integer number (1028693280).

Almost surely, 2^7818068814 is an apocalyptic number.

7818068814 is an abundant number, since it is smaller than the sum of its proper divisors (8641023666).

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

7818068814 is a wasteful number, since it uses less digits than its factorization.

7818068814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68579575.

The product of its (nonzero) digits is 688128, while the sum is 51.

The square root of 7818068814 is about 88419.8440057434. The cubic root of 7818068814 is about 1984.7226665143.

The spelling of 7818068814 in words is "seven billion, eight hundred eighteen million, sixty-eight thousand, eight hundred fourteen".