808804087857 has 72 divisors (see below), whose sum is σ = 1316664311040. Its totient is φ = 477297334080.

The previous prime is 808804087843. The next prime is 808804087877. The reversal of 808804087857 is 758780408808.

808804087857 is a `hidden beast` number, since 80 + 8 + 80 + 408 + 78 + 5 + 7 = 666.

808804087857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 808804087857 - 2¹⁵ = 808804055089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808804087794 and 808804087803.

It is not an unprimeable number, because it can be changed into a prime (808804087877) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2782398 + ... + 3059304.

It is an arithmetic number, because the mean of its divisors is an integer number (18287004320).

Almost surely, 2^808804087857 is an apocalyptic number.

808804087857 is a gapful number since it is divisible by the number (87) formed by its first and last digit.

It is an amenable number.

808804087857 is a deficient number, since it is larger than the sum of its proper divisors (507860223183).

808804087857 is a wasteful number, since it uses less digits than its factorization.

808804087857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277011 (or 276989 counting only the distinct ones).

The product of its (nonzero) digits is 32112640, while the sum is 63.

The spelling of 808804087857 in words is "eight hundred eight billion, eight hundred four million, eighty-seven thousand, eight hundred fifty-seven".