8219554412 has 24 divisors (see below), whose sum is σ = 14592241440. Its totient is φ = 4050385920.

The previous prime is 8219554411. The next prime is 8219554423. The reversal of 8219554412 is 2144559128.

It is a super-2 number, since 2×8219554412² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8219554412.

It is not an unprimeable number, because it can be changed into a prime (8219554411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1473164 + ... + 1478732.

It is an arithmetic number, because the mean of its divisors is an integer number (608010060).

Almost surely, 2^8219554412 is an apocalyptic number.

It is an amenable number.

8219554412 is a deficient number, since it is larger than the sum of its proper divisors (6372687028).

8219554412 is a wasteful number, since it uses less digits than its factorization.

8219554412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10841 (or 10839 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 8219554412 is about 90661.7582666474. The cubic root of 8219554412 is about 2018.1313316899.

The spelling of 8219554412 in words is "eight billion, two hundred nineteen million, five hundred fifty-four thousand, four hundred twelve".