6497997520895 has 8 divisors (see below), whose sum is σ = 7869134613120. Its totient is φ = 5150706291360.

The previous prime is 6497997520891. The next prime is 6497997520907. The reversal of 6497997520895 is 5980257997946.

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

It is not a de Polignac number, because 6497997520895 - 2² = 6497997520891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6497997520891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5961465071 + ... + 5961466160.

It is an arithmetic number, because the mean of its divisors is an integer number (983641826640).

Almost surely, 2^{6497997520895} is an apocalyptic number.

6497997520895 is a deficient number, since it is larger than the sum of its proper divisors (1371137092225).

6497997520895 is a wasteful number, since it uses less digits than its factorization.

6497997520895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11922931345.

The product of its (nonzero) digits is 3086294400, while the sum is 80.

The spelling of 6497997520895 in words is "six trillion, four hundred ninety-seven billion, nine hundred ninety-seven million, five hundred twenty thousand, eight hundred ninety-five".