6497997520897 has 8 divisors (see below), whose sum is σ = 6524022864960. Its totient is φ = 6471986023440.

The previous prime is 6497997520891. The next prime is 6497997520907. The reversal of 6497997520897 is 7980257997946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6497997520897 - 2¹¹ = 6497997518849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6497997520897.

It is not an unprimeable number, because it can be changed into a prime (6497997520891) 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 in 7 ways as a sum of consecutive naturals, for example, 2520693 + ... + 4398850.

It is an arithmetic number, because the mean of its divisors is an integer number (815502858120).

Almost surely, 2^{6497997520897} is an apocalyptic number.

It is an amenable number.

6497997520897 is a deficient number, since it is larger than the sum of its proper divisors (26025344063).

6497997520897 is a wasteful number, since it uses less digits than its factorization.

6497997520897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923303.

The product of its (nonzero) digits is 4320812160, while the sum is 82.

The spelling of 6497997520897 in words is "six trillion, four hundred ninety-seven billion, nine hundred ninety-seven million, five hundred twenty thousand, eight hundred ninety-seven".