6897616394328 has 512 divisors, whose sum is σ = 21589413580800. Its totient is φ = 2039410897920.

The previous prime is 6897616394321. The next prime is 6897616394359. The reversal of 6897616394328 is 8234936167986.

6897616394328 is a `hidden beast` number, since 6 + 89 + 76 + 16 + 39 + 432 + 8 = 666.

It is a super-2 number, since 2×6897616394328² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897616394321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6175126026 + ... + 6175127142.

It is an arithmetic number, because the mean of its divisors is an integer number (42166823400).

Almost surely, 2^{6897616394328} 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 6897616394328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10794706790400).

6897616394328 is an abundant number, since it is smaller than the sum of its proper divisors (14691797186472).

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

6897616394328 is a wasteful number, since it uses less digits than its factorization.

6897616394328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1637 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 6897616394328 in words is "six trillion, eight hundred ninety-seven billion, six hundred sixteen million, three hundred ninety-four thousand, three hundred twenty-eight".