6698345218 has 16 divisors (see below), whose sum is σ = 10222865784. Its totient is φ = 3290837760.

The previous prime is 6698345189. The next prime is 6698345231. The reversal of 6698345218 is 8125438966.

It can be written as a sum of positive squares in 4 ways, for example, as 3356695969 + 3341649249 = 57937^2 + 57807^2 .

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, 91096 + ... + 147292.

Almost surely, 2^6698345218 is an apocalyptic number.

6698345218 is a deficient number, since it is larger than the sum of its proper divisors (3524520566).

6698345218 is a wasteful number, since it uses less digits than its factorization.

6698345218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57237.

The product of its digits is 2488320, while the sum is 52.

The square root of 6698345218 is about 81843.4189046377. The cubic root of 6698345218 is about 1885.0484142101.

The spelling of 6698345218 in words is "six billion, six hundred ninety-eight million, three hundred forty-five thousand, two hundred eighteen".