6497686646938 has 8 divisors (see below), whose sum is σ = 9748498583520. Its totient is φ = 3248187119100.

The previous prime is 6497686646917. The next prime is 6497686646951. The reversal of 6497686646938 is 8396466867946.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328089808 + ... + 328109611.

It is an arithmetic number, because the mean of its divisors is an integer number (1218562322940).

Almost surely, 2^{6497686646938} is an apocalyptic number.

6497686646938 is a deficient number, since it is larger than the sum of its proper divisors (3250811936582).

6497686646938 is a wasteful number, since it uses less digits than its factorization.

6497686646938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656204372.

The product of its digits is 13544423424, while the sum is 82.

The spelling of 6497686646938 in words is "six trillion, four hundred ninety-seven billion, six hundred eighty-six million, six hundred forty-six thousand, nine hundred thirty-eight".