6851857354 has 8 divisors (see below), whose sum is σ = 10314362628. Its totient is φ = 3413736480.

The previous prime is 6851857351. The next prime is 6851857357. The reversal of 6851857354 is 4537581586.

It is an interprime number because it is at equal distance from previous prime (6851857351) and next prime (6851857357).

It can be written as a sum of positive squares in 2 ways, for example, as 6646651729 + 205205625 = 81527^2 + 14325^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6851857351) 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, 6095397 + ... + 6096520.

Almost surely, 2^6851857354 is an apocalyptic number.

6851857354 is a deficient number, since it is larger than the sum of its proper divisors (3462505274).

6851857354 is a wasteful number, since it uses less digits than its factorization.

6851857354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12192200.

The product of its digits is 4032000, while the sum is 52.

The square root of 6851857354 is about 82775.9467115901. The cubic root of 6851857354 is about 1899.3402468351.

The spelling of 6851857354 in words is "six billion, eight hundred fifty-one million, eight hundred fifty-seven thousand, three hundred fifty-four".