6486246478791 has 24 divisors (see below), whose sum is σ = 9474856176240. Its totient is φ = 4275323876736.

The previous prime is 6486246478759. The next prime is 6486246478841. The reversal of 6486246478791 is 1978746426846.

6486246478791 is a `hidden beast` number, since 6 + 4 + 8 + 6 + 2 + 464 + 78 + 7 + 91 = 666.

It is not a de Polignac number, because 6486246478791 - 2⁵ = 6486246478759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6486246471791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13739725 + ... + 14203961.

It is an arithmetic number, because the mean of its divisors is an integer number (394785674010).

Almost surely, 2^{6486246478791} is an apocalyptic number.

6486246478791 is a deficient number, since it is larger than the sum of its proper divisors (2988609697449).

6486246478791 is a wasteful number, since it uses less digits than its factorization.

6486246478791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481775 (or 481772 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 72.

The spelling of 6486246478791 in words is "six trillion, four hundred eighty-six billion, two hundred forty-six million, four hundred seventy-eight thousand, seven hundred ninety-one".