6391967232 has 320 divisors, whose sum is σ = 20835809280. Its totient is φ = 1700683776.

The previous prime is 6391967201. The next prime is 6391967261. The reversal of 6391967232 is 2327691936.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13687063 + ... + 13687529.

It is an arithmetic number, because the mean of its divisors is an integer number (65111904).

Almost surely, 2^6391967232 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 6391967232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10417904640).

6391967232 is an abundant number, since it is smaller than the sum of its proper divisors (14443842048).

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

6391967232 is a wasteful number, since it uses less digits than its factorization.

6391967232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581 (or 565 counting only the distinct ones).

The product of its digits is 734832, while the sum is 48.

The square root of 6391967232 is about 79949.7794368440. The cubic root of 6391967232 is about 1855.8584414429.

The spelling of 6391967232 in words is "six billion, three hundred ninety-one million, nine hundred sixty-seven thousand, two hundred thirty-two".