6698869646 has 16 divisors (see below), whose sum is σ = 11983071744. Its totient is φ = 2746120344.

The previous prime is 6698869633. The next prime is 6698869649. The reversal of 6698869646 is 6469688966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698869649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10401650 + ... + 10402293.

It is an arithmetic number, because the mean of its divisors is an integer number (748941984).

Almost surely, 2^6698869646 is an apocalyptic number.

6698869646 is a deficient number, since it is larger than the sum of its proper divisors (5284202098).

6698869646 is a wasteful number, since it uses less digits than its factorization.

6698869646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20803975.

The product of its digits is 161243136, while the sum is 68.

The square root of 6698869646 is about 81846.6226914709. The cubic root of 6698869646 is about 1885.0976077716.

The spelling of 6698869646 in words is "six billion, six hundred ninety-eight million, eight hundred sixty-nine thousand, six hundred forty-six".