6431411646 has 96 divisors (see below), whose sum is σ = 15486681600. Its totient is φ = 1912659840.

The previous prime is 6431411599. The next prime is 6431411671. The reversal of 6431411646 is 6461141346.

6431411646 is a `hidden beast` number, since 6 + 4 + 3 + 1 + 4 + 1 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6431411646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2798770 + ... + 2801066.

It is an arithmetic number, because the mean of its divisors is an integer number (161319600).

Almost surely, 2^6431411646 is an apocalyptic number.

6431411646 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 6431411646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7743340800).

6431411646 is an abundant number, since it is smaller than the sum of its proper divisors (9055269954).

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

6431411646 is a wasteful number, since it uses less digits than its factorization.

6431411646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574 (or 2571 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 6431411646 is about 80196.0824853683. The cubic root of 6431411646 is about 1859.6680763932.

The spelling of 6431411646 in words is "six billion, four hundred thirty-one million, four hundred eleven thousand, six hundred forty-six".