6854864420 has 12 divisors (see below), whose sum is σ = 14395215324. Its totient is φ = 2741945760.

The previous prime is 6854864347. The next prime is 6854864483. The reversal of 6854864420 is 244684586.

It can be written as a sum of positive squares in 2 ways, for example, as 4720239616 + 2134624804 = 68704^2 + 46202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171371591 + ... + 171371630.

It is an arithmetic number, because the mean of its divisors is an integer number (1199601277).

Almost surely, 2^6854864420 is an apocalyptic number.

It is an amenable number.

6854864420 is an abundant number, since it is smaller than the sum of its proper divisors (7540350904).

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

6854864420 is a wasteful number, since it uses less digits than its factorization.

6854864420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342743230 (or 342743228 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 47.

The square root of 6854864420 is about 82794.1086068326. The cubic root of 6854864420 is about 1899.6180598846.

The spelling of 6854864420 in words is "six billion, eight hundred fifty-four million, eight hundred sixty-four thousand, four hundred twenty".