6949218894 has 16 divisors (see below), whose sum is σ = 14715993168. Its totient is φ = 2180147072.

The previous prime is 6949218883. The next prime is 6949218917. The reversal of 6949218894 is 4988129496.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 34064697 + ... + 34064900.

It is an arithmetic number, because the mean of its divisors is an integer number (919749573).

Almost surely, 2^6949218894 is an apocalyptic number.

6949218894 is an abundant number, since it is smaller than the sum of its proper divisors (7766774274).

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

6949218894 is a wasteful number, since it uses less digits than its factorization.

6949218894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68129619.

The product of its digits is 8957952, while the sum is 60.

The square root of 6949218894 is about 83361.9751085589. The cubic root of 6949218894 is about 1908.2942011913.

The spelling of 6949218894 in words is "six billion, nine hundred forty-nine million, two hundred eighteen thousand, eight hundred ninety-four".