6397797312 has 224 divisors, whose sum is σ = 19501672960. Its totient is φ = 2081044224.

The previous prime is 6397797229. The next prime is 6397797319. The reversal of 6397797312 is 2137977936.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6397797319) 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 31 ways as a sum of consecutive naturals, for example, 6018093 + ... + 6019155.

It is an arithmetic number, because the mean of its divisors is an integer number (87061040).

Almost surely, 2^6397797312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6397797312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9750836480).

6397797312 is an abundant number, since it is smaller than the sum of its proper divisors (13103875648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6397797312 is an equidigital number, since it uses as much as digits as its factorization.

6397797312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1111 counting only the distinct ones).

The product of its digits is 3000564, while the sum is 54.

The square root of 6397797312 is about 79986.2320152662. The cubic root of 6397797312 is about 1856.4225095873.

The spelling of 6397797312 in words is "six billion, three hundred ninety-seven million, seven hundred ninety-seven thousand, three hundred twelve".