6839774840 has 16 divisors (see below), whose sum is σ = 15389493480. Its totient is φ = 2735909920.

The previous prime is 6839774813. The next prime is 6839774863. The reversal of 6839774840 is 484779386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85497146 + ... + 85497225.

Almost surely, 2^6839774840 is an apocalyptic number.

It is an amenable number.

6839774840 is an abundant number, since it is smaller than the sum of its proper divisors (8549718640).

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

6839774840 is a wasteful number, since it uses less digits than its factorization.

6839774840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170994382 (or 170994378 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 56.

The square root of 6839774840 is about 82702.9312660682. The cubic root of 6839774840 is about 1898.2231624973.

The spelling of 6839774840 in words is "six billion, eight hundred thirty-nine million, seven hundred seventy-four thousand, eight hundred forty".