90888888884444 has 18 divisors (see below), whose sum is σ = 185023809515160. Its totient is φ = 38952380950392.

The previous prime is 90888888884429. The next prime is 90888888884447. The reversal of 90888888884444 is 44448888888809.

It is a self number, because there is not a number n which added to its sum of digits gives 90888888884444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90888888884447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231859410224 + ... + 231859410615.

It is an arithmetic number, because the mean of its divisors is an integer number (10279100528620).

Almost surely, 2^{90888888884444} is an apocalyptic number.

It is an amenable number.

90888888884444 is an abundant number, since it is smaller than the sum of its proper divisors (94134920630716).

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

90888888884444 is a wasteful number, since it uses less digits than its factorization.

90888888884444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463718820857 (or 463718820848 counting only the distinct ones).

The product of its (nonzero) digits is 38654705664, while the sum is 89.

The spelling of 90888888884444 in words is "ninety trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-four thousand, four hundred forty-four".