8273181864 has 16 divisors (see below), whose sum is σ = 20682954720. Its totient is φ = 2757727280.

The previous prime is 8273181827. The next prime is 8273181901. The reversal of 8273181864 is 4681813728.

It is an interprime number because it is at equal distance from previous prime (8273181827) and next prime (8273181901).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172357932 + ... + 172357979.

It is an arithmetic number, because the mean of its divisors is an integer number (1292684670).

Almost surely, 2^8273181864 is an apocalyptic number.

It is an amenable number.

8273181864 is an abundant number, since it is smaller than the sum of its proper divisors (12409772856).

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

8273181864 is a wasteful number, since it uses less digits than its factorization.

8273181864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344715920 (or 344715916 counting only the distinct ones).

The product of its digits is 516096, while the sum is 48.

The square root of 8273181864 is about 90957.0330650687. The cubic root of 8273181864 is about 2022.5108358766.

The spelling of 8273181864 in words is "eight billion, two hundred seventy-three million, one hundred eighty-one thousand, eight hundred sixty-four".