8919143272 has 32 divisors (see below), whose sum is σ = 18184682880. Its totient is φ = 4076556480.

The previous prime is 8919143183. The next prime is 8919143281. The reversal of 8919143272 is 2723419198.

It is a happy number.

8919143272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8919143272² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 405604 + ... + 427027.

It is an arithmetic number, because the mean of its divisors is an integer number (568271340).

Almost surely, 2^8919143272 is an apocalyptic number.

It is an amenable number.

8919143272 is an abundant number, since it is smaller than the sum of its proper divisors (9265539608).

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

8919143272 is a wasteful number, since it uses less digits than its factorization.

8919143272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832753 (or 832749 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 8919143272 is about 94441.2159599822. The cubic root of 8919143272 is about 2073.8358610218.

The spelling of 8919143272 in words is "eight billion, nine hundred nineteen million, one hundred forty-three thousand, two hundred seventy-two".