6481403712 has 84 divisors (see below), whose sum is σ = 21231754336. Its totient is φ = 1851828480.

The previous prime is 6481403711. The next prime is 6481403737. The reversal of 6481403712 is 2173041846.

6481403712 is a `hidden beast` number, since 648 + 1 + 4 + 0 + 3 + 7 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481403711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799714 + ... + 807777.

Almost surely, 2^6481403712 is an apocalyptic number.

It is an amenable number.

6481403712 is an abundant number, since it is smaller than the sum of its proper divisors (14750350624).

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

6481403712 is a wasteful number, since it uses less digits than its factorization.

6481403712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607516 (or 1607503 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 6481403712 is about 80507.1655941258. The cubic root of 6481403712 is about 1864.4741129751.

The spelling of 6481403712 in words is "six billion, four hundred eighty-one million, four hundred three thousand, seven hundred twelve".