6396197980500 has 768 divisors, whose sum is σ = 21484957777920. Its totient is φ = 1642177152000.

The previous prime is 6396197980489. The next prime is 6396197980519. The reversal of 6396197980500 is 50897916936.

6396197980500 is a `hidden beast` number, since 6 + 3 + 9 + 619 + 7 + 9 + 8 + 0 + 5 + 0 + 0 = 666.

It is a super-2 number, since 2×6396197980500² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 8798071137 + ... + 8798071863.

It is an arithmetic number, because the mean of its divisors is an integer number (27975205440).

Almost surely, 2^{6396197980500} is an apocalyptic number.

6396197980500 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 6396197980500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10742478888960).

6396197980500 is an abundant number, since it is smaller than the sum of its proper divisors (15088759797420).

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

6396197980500 is a wasteful number, since it uses less digits than its factorization.

6396197980500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030 (or 1012 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 63.

The spelling of 6396197980500 in words is "six trillion, three hundred ninety-six billion, one hundred ninety-seven million, nine hundred eighty thousand, five hundred".