6878091841 has 4 divisors (see below), whose sum is σ = 6883479252. Its totient is φ = 6872704432.

The previous prime is 6878091839. The next prime is 6878091889. The reversal of 6878091841 is 1481908786.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1481908786 = 2 ⋅740954393.

It can be written as a sum of positive squares in 2 ways, for example, as 2200079025 + 4678012816 = 46905^2 + 68396^2 .

It is a cyclic number.

It is not a de Polignac number, because 6878091841 - 2¹ = 6878091839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6878091821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691790 + ... + 2694343.

It is an arithmetic number, because the mean of its divisors is an integer number (1720869813).

Almost surely, 2^6878091841 is an apocalyptic number.

It is an amenable number.

6878091841 is a deficient number, since it is larger than the sum of its proper divisors (5387411).

6878091841 is a wasteful number, since it uses less digits than its factorization.

6878091841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5387410.

The product of its (nonzero) digits is 774144, while the sum is 52.

The square root of 6878091841 is about 82934.2621658865. The cubic root of 6878091841 is about 1901.7612330995.

The spelling of 6878091841 in words is "six billion, eight hundred seventy-eight million, ninety-one thousand, eight hundred forty-one".