8541199212 has 144 divisors (see below), whose sum is σ = 25576461792. Its totient is φ = 2197601280.

The previous prime is 8541199169. The next prime is 8541199231. The reversal of 8541199212 is 2129911458.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 47 ways as a sum of consecutive naturals, for example, 299778 + ... + 327030.

It is an arithmetic number, because the mean of its divisors is an integer number (177614318).

Almost surely, 2^8541199212 is an apocalyptic number.

8541199212 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 8541199212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12788230896).

8541199212 is an abundant number, since it is smaller than the sum of its proper divisors (17035262580).

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

8541199212 is a wasteful number, since it uses less digits than its factorization.

8541199212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27328 (or 27319 counting only the distinct ones).

The product of its digits is 51840, while the sum is 42.

The square root of 8541199212 is about 92418.6085807398. The cubic root of 8541199212 is about 2044.1195119962.

The spelling of 8541199212 in words is "eight billion, five hundred forty-one million, one hundred ninety-nine thousand, two hundred twelve".