8178223872 has 432 divisors, whose sum is σ = 27761526240. Its totient is φ = 2118057984.

The previous prime is 8178223841. The next prime is 8178223891. The reversal of 8178223872 is 2783228718.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 35712654 + ... + 35712882.

Almost surely, 2^8178223872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8178223872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13880763120).

8178223872 is an abundant number, since it is smaller than the sum of its proper divisors (19583302368).

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

8178223872 is a wasteful number, since it uses less digits than its factorization.

8178223872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 327 counting only the distinct ones).

The product of its digits is 602112, while the sum is 48.

The square root of 8178223872 is about 90433.5328957130. The cubic root of 8178223872 is about 2014.7430436233.

The spelling of 8178223872 in words is "eight billion, one hundred seventy-eight million, two hundred twenty-three thousand, eight hundred seventy-two".