808863904392 has 128 divisors (see below), whose sum is σ = 2088555840000. Its totient is φ = 260882370560.

The previous prime is 808863904391. The next prime is 808863904393. The reversal of 808863904392 is 293409368808.

It is an interprime number because it is at equal distance from previous prime (808863904391) and next prime (808863904393).

It is not an unprimeable number, because it can be changed into a prime (808863904391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105413068 + ... + 105420740.

It is an arithmetic number, because the mean of its divisors is an integer number (16316842500).

Almost surely, 2^808863904392 is an apocalyptic number.

808863904392 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808863904392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044277920000).

808863904392 is an abundant number, since it is smaller than the sum of its proper divisors (1279691935608).

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

808863904392 is a wasteful number, since it uses less digits than its factorization.

808863904392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8591 (or 8587 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 808863904392 in words is "eight hundred eight billion, eight hundred sixty-three million, nine hundred four thousand, three hundred ninety-two".