6486111391 has 2 divisors, whose sum is σ = 6486111392. Its totient is φ = 6486111390.

The previous prime is 6486111353. The next prime is 6486111403. The reversal of 6486111391 is 1931116846.

6486111391 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6486111391 - 2¹⁹ = 6485587103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6486111311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3243055695 + 3243055696.

It is an arithmetic number, because the mean of its divisors is an integer number (3243055696).

Almost surely, 2^6486111391 is an apocalyptic number.

6486111391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6486111391 is an equidigital number, since it uses as much as digits as its factorization.

6486111391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 6486111391 is about 80536.3979266518. The cubic root of 6486111391 is about 1864.9254154898.

The spelling of 6486111391 in words is "six billion, four hundred eighty-six million, one hundred eleven thousand, three hundred ninety-one".