6343887451331 has 2 divisors, whose sum is σ = 6343887451332. Its totient is φ = 6343887451330.

The previous prime is 6343887451303. The next prime is 6343887451333. The reversal of 6343887451331 is 1331547883436.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6343887451331 - 2⁶ = 6343887451267 is a prime.

It is a super-2 number, since 2×6343887451331² (a number of 26 digits) contains 22 as substring.

Together with 6343887451333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6343887451333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171943725665 + 3171943725666.

It is an arithmetic number, because the mean of its divisors is an integer number (3171943725666).

Almost surely, 2^{6343887451331} is an apocalyptic number.

6343887451331 is a deficient number, since it is larger than the sum of its proper divisors (1).

6343887451331 is an equidigital number, since it uses as much as digits as its factorization.

6343887451331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17418240, while the sum is 56.

The spelling of 6343887451331 in words is "six trillion, three hundred forty-three billion, eight hundred eighty-seven million, four hundred fifty-one thousand, three hundred thirty-one".