6491207712 has 96 divisors (see below), whose sum is σ = 18610953984. Its totient is φ = 1964652800.

The previous prime is 6491207711. The next prime is 6491207743. The reversal of 6491207712 is 2177021946.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6491207711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996787 + ... + 1003277.

It is an arithmetic number, because the mean of its divisors is an integer number (193864104).

Almost surely, 2^6491207712 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 6491207712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9305476992).

6491207712 is an abundant number, since it is smaller than the sum of its proper divisors (12119746272).

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

6491207712 is a wasteful number, since it uses less digits than its factorization.

6491207712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462 (or 7454 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 6491207712 is about 80568.0315758055. The cubic root of 6491207712 is about 1865.4137291504.

The spelling of 6491207712 in words is "six billion, four hundred ninety-one million, two hundred seven thousand, seven hundred twelve".