6684628946 has 16 divisors (see below), whose sum is σ = 10074475224. Its totient is φ = 3326504064.

The previous prime is 6684628933. The next prime is 6684628957. The reversal of 6684628946 is 6498264866.

It can be written as a sum of positive squares in 4 ways, for example, as 5907613321 + 777015625 = 76861^2 + 27875^2 .

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, 415916 + ... + 431688.

Almost surely, 2^6684628946 is an apocalyptic number.

6684628946 is a deficient number, since it is larger than the sum of its proper divisors (3389846278).

6684628946 is a wasteful number, since it uses less digits than its factorization.

6684628946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16765.

The product of its digits is 23887872, while the sum is 59.

The square root of 6684628946 is about 81759.5801481392. The cubic root of 6684628946 is about 1883.7608571360.

The spelling of 6684628946 in words is "six billion, six hundred eighty-four million, six hundred twenty-eight thousand, nine hundred forty-six".