6891042116 has 72 divisors (see below), whose sum is σ = 14192015040. Its totient is φ = 2867057856.

The previous prime is 6891042079. The next prime is 6891042127. The reversal of 6891042116 is 6112401986.

It is a super-2 number, since 2×6891042116² = 94972922888971514912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6891042116.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42276251 + ... + 42276413.

It is an arithmetic number, because the mean of its divisors is an integer number (197111320).

Almost surely, 2^6891042116 is an apocalyptic number.

It is an amenable number.

6891042116 is an abundant number, since it is smaller than the sum of its proper divisors (7300972924).

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

6891042116 is a wasteful number, since it uses less digits than its factorization.

6891042116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 6891042116 is about 83012.3009920819. The cubic root of 6891042116 is about 1902.9540489117.

The spelling of 6891042116 in words is "six billion, eight hundred ninety-one million, forty-two thousand, one hundred sixteen".