6431241641256 has 48 divisors (see below), whose sum is σ = 17423361083700. Its totient is φ = 2143080755712.

The previous prime is 6431241641219. The next prime is 6431241641261. The reversal of 6431241641256 is 6521461421346.

6431241641256 is a `hidden beast` number, since 6 + 4 + 312 + 41 + 6 + 41 + 256 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5614369125156 + 816872516100 = 2369466^2 + 903810^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13651311 + ... + 14114558.

Almost surely, 2^{6431241641256} is an apocalyptic number.

It is an amenable number.

6431241641256 is an abundant number, since it is smaller than the sum of its proper divisors (10992119442444).

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

6431241641256 is a wasteful number, since it uses less digits than its factorization.

6431241641256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27769098 (or 27769091 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 6431241641256 in words is "six trillion, four hundred thirty-one billion, two hundred forty-one million, six hundred forty-one thousand, two hundred fifty-six".