6311681226 has 12 divisors (see below), whose sum is σ = 13675309362. Its totient is φ = 2103893736.

The previous prime is 6311681213. The next prime is 6311681261. The reversal of 6311681226 is 6221861136.

It is a happy number.

6311681226 is a `hidden beast` number, since 631 + 1 + 6 + 8 + 12 + 2 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6279770025 + 31911201 = 79245^2 + 5649^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175324461 + ... + 175324496.

Almost surely, 2^6311681226 is an apocalyptic number.

6311681226 is an abundant number, since it is smaller than the sum of its proper divisors (7363628136).

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

6311681226 is a wasteful number, since it uses less digits than its factorization.

6311681226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350648965 (or 350648962 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 6311681226 is about 79446.0900611226. The cubic root of 6311681226 is about 1848.0555392455.

The spelling of 6311681226 in words is "six billion, three hundred eleven million, six hundred eighty-one thousand, two hundred twenty-six".