6897847680 has 128 divisors (see below), whose sum is σ = 24429938400. Its totient is φ = 1839421440.

The previous prime is 6897847679. The next prime is 6897847681. The reversal of 6897847680 is 867487986.

6897847680 is a `hidden beast` number, since 6 + 89 + 7 + 8 + 476 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (6897847679) and next prime (6897847681).

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6897847681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182311 + ... + 216870.

Almost surely, 2^6897847680 is an apocalyptic number.

6897847680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6897847680 is an abundant number, since it is smaller than the sum of its proper divisors (17532090720).

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

6897847680 is a wasteful number, since it uses less digits than its factorization.

6897847680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399209 (or 399191 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 63.

The square root of 6897847680 is about 83053.2821747582. The cubic root of 6897847680 is about 1903.5802925840.

The spelling of 6897847680 in words is "six billion, eight hundred ninety-seven million, eight hundred forty-seven thousand, six hundred eighty".