6855418351 has 4 divisors (see below), whose sum is σ = 7258678272. Its totient is φ = 6452158432.

The previous prime is 6855418343. The next prime is 6855418363. The reversal of 6855418351 is 1538145586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6855418351 - 2³ = 6855418343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855418301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201629935 + ... + 201629968.

It is an arithmetic number, because the mean of its divisors is an integer number (1814669568).

Almost surely, 2^6855418351 is an apocalyptic number.

6855418351 is a deficient number, since it is larger than the sum of its proper divisors (403259921).

6855418351 is a wasteful number, since it uses less digits than its factorization.

6855418351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403259920.

The product of its digits is 576000, while the sum is 46.

The square root of 6855418351 is about 82797.4537712362. The cubic root of 6855418351 is about 1899.6692269062.

The spelling of 6855418351 in words is "six billion, eight hundred fifty-five million, four hundred eighteen thousand, three hundred fifty-one".