6839028136 has 8 divisors (see below), whose sum is σ = 12823177770. Its totient is φ = 3419514064.

The previous prime is 6839028121. The next prime is 6839028137. The reversal of 6839028136 is 6318209386.

It can be written as a sum of positive squares in only one way, i.e., 3795299236 + 3043728900 = 61606^2 + 55170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (6839028137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427439251 + ... + 427439266.

Almost surely, 2^6839028136 is an apocalyptic number.

It is an amenable number.

6839028136 is a deficient number, since it is larger than the sum of its proper divisors (5984149634).

6839028136 is a wasteful number, since it uses less digits than its factorization.

6839028136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854878523 (or 854878519 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 6839028136 is about 82698.4167684001. The cubic root of 6839028136 is about 1898.1540831078.

The spelling of 6839028136 in words is "six billion, eight hundred thirty-nine million, twenty-eight thousand, one hundred thirty-six".