6818780026 has 16 divisors (see below), whose sum is σ = 10599217920. Its totient is φ = 3286563840.

The previous prime is 6818779993. The next prime is 6818780041. The reversal of 6818780026 is 6200878186.

It is a super-2 number, since 2×6818780026² = 92991522085953121352, which contains 22 as substring.

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, 198036 + ... + 229903.

It is an arithmetic number, because the mean of its divisors is an integer number (662451120).

Almost surely, 2^6818780026 is an apocalyptic number.

6818780026 is a deficient number, since it is larger than the sum of its proper divisors (3780437894).

6818780026 is a wasteful number, since it uses less digits than its factorization.

6818780026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428229.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 6818780026 is about 82575.9046332524. The cubic root of 6818780026 is about 1896.2789616437.

The spelling of 6818780026 in words is "six billion, eight hundred eighteen million, seven hundred eighty thousand, twenty-six".