8422989538812 has 24 divisors (see below), whose sum is σ = 19683375471312. Its totient is φ = 2803415577600.

The previous prime is 8422989538811. The next prime is 8422989538871. The reversal of 8422989538812 is 2188359892248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8422989538811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530941989 + ... + 530957852.

It is an arithmetic number, because the mean of its divisors is an integer number (820140644638).

Almost surely, 2^{8422989538812} is an apocalyptic number.

It is an amenable number.

8422989538812 is an abundant number, since it is smaller than the sum of its proper divisors (11260385932500).

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

8422989538812 is a wasteful number, since it uses less digits than its factorization.

8422989538812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061900509 (or 1061900507 counting only the distinct ones).

The product of its digits is 159252480, while the sum is 69.

The spelling of 8422989538812 in words is "eight trillion, four hundred twenty-two billion, nine hundred eighty-nine million, five hundred thirty-eight thousand, eight hundred twelve".