6853964420 has 12 divisors (see below), whose sum is σ = 14393325324. Its totient is φ = 2741585760.

The previous prime is 6853964413. The next prime is 6853964431. The reversal of 6853964420 is 244693586.

It can be written as a sum of positive squares in 2 ways, for example, as 3098480896 + 3755483524 = 55664^2 + 61282^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171349091 + ... + 171349130.

It is an arithmetic number, because the mean of its divisors is an integer number (1199443777).

Almost surely, 2^6853964420 is an apocalyptic number.

It is an amenable number.

6853964420 is an abundant number, since it is smaller than the sum of its proper divisors (7539360904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6853964420 is a wasteful number, since it uses less digits than its factorization.

6853964420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342698230 (or 342698228 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 6853964420 is about 82788.6732590878. The cubic root of 6853964420 is about 1899.5349203320.

The spelling of 6853964420 in words is "six billion, eight hundred fifty-three million, nine hundred sixty-four thousand, four hundred twenty".