6851974838 has 8 divisors (see below), whose sum is σ = 10281563280. Its totient is φ = 3424787080.

The previous prime is 6851974799. The next prime is 6851974859. The reversal of 6851974838 is 8384791586.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 593018 + ... + 604461.

It is an arithmetic number, because the mean of its divisors is an integer number (1285195410).

Almost surely, 2^6851974838 is an apocalyptic number.

6851974838 is a deficient number, since it is larger than the sum of its proper divisors (3429588442).

6851974838 is a wasteful number, since it uses less digits than its factorization.

6851974838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200342.

The product of its digits is 11612160, while the sum is 59.

The square root of 6851974838 is about 82776.6563591451. The cubic root of 6851974838 is about 1899.3511023254.

The spelling of 6851974838 in words is "six billion, eight hundred fifty-one million, nine hundred seventy-four thousand, eight hundred thirty-eight".