6888449350667 has 2 divisors, whose sum is σ = 6888449350668. Its totient is φ = 6888449350666.

The previous prime is 6888449350649. The next prime is 6888449350687. The reversal of 6888449350667 is 7660539448886.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6888449350667 - 2⁴⁰ = 5788937722891 is a prime.

It is a super-2 number, since 2×6888449350667² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6888449350594 and 6888449350603.

It is not a weakly prime, because it can be changed into another prime (6888449350687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444224675333 + 3444224675334.

It is an arithmetic number, because the mean of its divisors is an integer number (3444224675334).

Almost surely, 2^{6888449350667} is an apocalyptic number.

6888449350667 is a deficient number, since it is larger than the sum of its proper divisors (1).

6888449350667 is an equidigital number, since it uses as much as digits as its factorization.

6888449350667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1672151040, while the sum is 74.

The spelling of 6888449350667 in words is "six trillion, eight hundred eighty-eight billion, four hundred forty-nine million, three hundred fifty thousand, six hundred sixty-seven".