6391980600 has 192 divisors, whose sum is σ = 20864736000. Its totient is φ = 1615595520.

The previous prime is 6391980593. The next prime is 6391980601. The reversal of 6391980600 is 60891936.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6391980601) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1557351 + ... + 1561449.

It is an arithmetic number, because the mean of its divisors is an integer number (108670500).

Almost surely, 2^6391980600 is an apocalyptic number.

6391980600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6391980600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10432368000).

6391980600 is an abundant number, since it is smaller than the sum of its proper divisors (14472755400).

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

6391980600 is a wasteful number, since it uses less digits than its factorization.

6391980600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4254 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 6391980600 is about 79949.8630392823. The cubic root of 6391980600 is about 1855.8597352073.

The spelling of 6391980600 in words is "six billion, three hundred ninety-one million, nine hundred eighty thousand, six hundred".