6816804858 has 32 divisors (see below), whose sum is σ = 15204801600. Its totient is φ = 2263816368.

The previous prime is 6816804833. The next prime is 6816804877. The reversal of 6816804858 is 8584086186.

6816804858 is a `hidden beast` number, since 6 + 81 + 6 + 80 + 485 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220116 + ... + 249167.

It is an arithmetic number, because the mean of its divisors is an integer number (475150050).

Almost surely, 2^6816804858 is an apocalyptic number.

6816804858 is an abundant number, since it is smaller than the sum of its proper divisors (8387996742).

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

6816804858 is a wasteful number, since it uses less digits than its factorization.

6816804858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469563 (or 469557 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The square root of 6816804858 is about 82563.9440555016. The cubic root of 6816804858 is about 1896.0958481829.

The spelling of 6816804858 in words is "six billion, eight hundred sixteen million, eight hundred four thousand, eight hundred fifty-eight".