6490841281247 has 4 divisors (see below), whose sum is σ = 6773051771760. Its totient is φ = 6208630790736.

The previous prime is 6490841281193. The next prime is 6490841281271. The reversal of 6490841281247 is 7421821480946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6490841281247 - 2⁸ = 6490841280991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6490841281192 and 6490841281201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490841283247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141105245222 + ... + 141105245267.

It is an arithmetic number, because the mean of its divisors is an integer number (1693262942940).

Almost surely, 2^{6490841281247} is an apocalyptic number.

6490841281247 is a deficient number, since it is larger than the sum of its proper divisors (282210490513).

6490841281247 is a wasteful number, since it uses less digits than its factorization.

6490841281247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282210490512.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 6490841281247 in words is "six trillion, four hundred ninety billion, eight hundred forty-one million, two hundred eighty-one thousand, two hundred forty-seven".