6809878834 has 8 divisors (see below), whose sum is σ = 11143438128. Its totient is φ = 3095399460.

The previous prime is 6809878807. The next prime is 6809878879. The reversal of 6809878834 is 4388789086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6809878834² = 92748899467522399112, which contains 22 as substring.

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, 154769952 + ... + 154769995.

It is an arithmetic number, because the mean of its divisors is an integer number (1392929766).

Almost surely, 2^6809878834 is an apocalyptic number.

6809878834 is a deficient number, since it is larger than the sum of its proper divisors (4333559294).

6809878834 is a wasteful number, since it uses less digits than its factorization.

6809878834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309539960.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The square root of 6809878834 is about 82521.9900026654. The cubic root of 6809878834 is about 1895.4534721851.

The spelling of 6809878834 in words is "six billion, eight hundred nine million, eight hundred seventy-eight thousand, eight hundred thirty-four".