6818039994 has 16 divisors (see below), whose sum is σ = 14075953920. Its totient is φ = 2199367680.

The previous prime is 6818039957. The next prime is 6818040023. The reversal of 6818039994 is 4999308186.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18327879 + ... + 18328250.

It is an arithmetic number, because the mean of its divisors is an integer number (879747120).

Almost surely, 2^6818039994 is an apocalyptic number.

6818039994 is an abundant number, since it is smaller than the sum of its proper divisors (7257913926).

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

6818039994 is a wasteful number, since it uses less digits than its factorization.

6818039994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36656165.

The product of its (nonzero) digits is 3359232, while the sum is 57.

The square root of 6818039994 is about 82571.4235919425. The cubic root of 6818039994 is about 1896.2103590551.

The spelling of 6818039994 in words is "six billion, eight hundred eighteen million, thirty-nine thousand, nine hundred ninety-four".