6897168520 has 128 divisors (see below), whose sum is σ = 17443641600. Its totient is φ = 2432332800.

The previous prime is 6897168419. The next prime is 6897168521. The reversal of 6897168520 is 258617986.

It is not an unprimeable number, because it can be changed into a prime (6897168521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7504621 + ... + 7505539.

It is an arithmetic number, because the mean of its divisors is an integer number (136278450).

Almost surely, 2^6897168520 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 6897168520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8721820800).

6897168520 is an abundant number, since it is smaller than the sum of its proper divisors (10546473080).

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

6897168520 is a wasteful number, since it uses less digits than its factorization.

6897168520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 6897168520 is about 83049.1933735662. The cubic root of 6897168520 is about 1903.5178152198.

The spelling of 6897168520 in words is "six billion, eight hundred ninety-seven million, one hundred sixty-eight thousand, five hundred twenty".