893128849172808 has 32 divisors (see below), whose sum is σ = 2284748218816800. Its totient is φ = 290786136939648.

The previous prime is 893128849172663. The next prime is 893128849172863. The reversal of 893128849172808 is 808271948821398.

It is a happy number.

It is a Sastry number since concatenated with its successor gives a square.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432717464653 + ... + 432717466716.

It is an arithmetic number, because the mean of its divisors is an integer number (71398381838025).

Almost surely, 2^{893128849172808} is an apocalyptic number.

It is an amenable number.

893128849172808 is an abundant number, since it is smaller than the sum of its proper divisors (1391619369643992).

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

893128849172808 is a wasteful number, since it uses less digits than its factorization.

893128849172808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865434931421 (or 865434931417 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 78.

The spelling of 893128849172808 in words is "eight hundred ninety-three trillion, one hundred twenty-eight billion, eight hundred forty-nine million, one hundred seventy-two thousand, eight hundred eight".