6397288993 has 16 divisors (see below), whose sum is σ = 6608952000. Its totient is φ = 6189648640.

The previous prime is 6397288981. The next prime is 6397289021. The reversal of 6397288993 is 3998827936.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6397288993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6397288913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373733 + ... + 1378381.

It is an arithmetic number, because the mean of its divisors is an integer number (413059500).

Almost surely, 2^6397288993 is an apocalyptic number.

It is an amenable number.

6397288993 is a deficient number, since it is larger than the sum of its proper divisors (211663007).

6397288993 is a wasteful number, since it uses less digits than its factorization.

6397288993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072.

The product of its digits is 35271936, while the sum is 64.

The square root of 6397288993 is about 79983.0544115439. The cubic root of 6397288993 is about 1856.3733426745.

The spelling of 6397288993 in words is "six billion, three hundred ninety-seven million, two hundred eighty-eight thousand, nine hundred ninety-three".