6728582634791 has 2 divisors, whose sum is σ = 6728582634792. Its totient is φ = 6728582634790.

The previous prime is 6728582634779. The next prime is 6728582634901. The reversal of 6728582634791 is 1974362858276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6728582634791 - 2²² = 6728578440487 is a prime.

It is a super-2 number, since 2×6728582634791² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6728582634731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3364291317395 + 3364291317396.

It is an arithmetic number, because the mean of its divisors is an integer number (3364291317396).

Almost surely, 2^{6728582634791} is an apocalyptic number.

6728582634791 is a deficient number, since it is larger than the sum of its proper divisors (1).

6728582634791 is an equidigital number, since it uses as much as digits as its factorization.

6728582634791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243855360, while the sum is 68.

The spelling of 6728582634791 in words is "six trillion, seven hundred twenty-eight billion, five hundred eighty-two million, six hundred thirty-four thousand, seven hundred ninety-one".