6855572212 has 6 divisors (see below), whose sum is σ = 11997251378. Its totient is φ = 3427786104.

The previous prime is 6855572209. The next prime is 6855572219. The reversal of 6855572212 is 2122755586.

It can be written as a sum of positive squares in only one way, i.e., 5565756816 + 1289815396 = 74604^2 + 35914^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855572219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856946523 + ... + 856946530.

Almost surely, 2^6855572212 is an apocalyptic number.

It is an amenable number.

6855572212 is a deficient number, since it is larger than the sum of its proper divisors (5141679166).

6855572212 is a wasteful number, since it uses less digits than its factorization.

6855572212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713893057 (or 1713893055 counting only the distinct ones).

The product of its digits is 336000, while the sum is 43.

The square root of 6855572212 is about 82798.3829069143. The cubic root of 6855572212 is about 1899.6834386730.

The spelling of 6855572212 in words is "six billion, eight hundred fifty-five million, five hundred seventy-two thousand, two hundred twelve".