6481073844 has 96 divisors (see below), whose sum is σ = 19301103360. Its totient is φ = 1842293376.

The previous prime is 6481073827. The next prime is 6481073873. The reversal of 6481073844 is 4483701846.

It is a self number, because there is not a number n which added to its sum of digits gives 6481073844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127174 + ... + 170690.

It is an arithmetic number, because the mean of its divisors is an integer number (201053160).

Almost surely, 2^6481073844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6481073844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9650551680).

6481073844 is an abundant number, since it is smaller than the sum of its proper divisors (12820029516).

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

6481073844 is a wasteful number, since it uses less digits than its factorization.

6481073844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43734 (or 43726 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The square root of 6481073844 is about 80505.1168808542. The cubic root of 6481073844 is about 1864.4424819268.

The spelling of 6481073844 in words is "six billion, four hundred eighty-one million, seventy-three thousand, eight hundred forty-four".