6457122440687 has 2 divisors, whose sum is σ = 6457122440688. Its totient is φ = 6457122440686.

The previous prime is 6457122440683. The next prime is 6457122440731. The reversal of 6457122440687 is 7860442217546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6457122440687 - 2² = 6457122440683 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6457122440683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3228561220343 + 3228561220344.

It is an arithmetic number, because the mean of its divisors is an integer number (3228561220344).

Almost surely, 2^{6457122440687} is an apocalyptic number.

6457122440687 is a deficient number, since it is larger than the sum of its proper divisors (1).

6457122440687 is an equidigital number, since it uses as much as digits as its factorization.

6457122440687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18063360, while the sum is 56.

The spelling of 6457122440687 in words is "six trillion, four hundred fifty-seven billion, one hundred twenty-two million, four hundred forty thousand, six hundred eighty-seven".