889986420217720 has 32 divisors (see below), whose sum is σ = 2288536509132000. Its totient is φ = 305138201217408.

The previous prime is 889986420217703. The next prime is 889986420217721. The reversal of 889986420217720 is 27712024689988.

889986420217720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889986420217721) 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, 1589261464395 + ... + 1589261464954.

It is an arithmetic number, because the mean of its divisors is an integer number (71516765910375).

Almost surely, 2^{889986420217720} is an apocalyptic number.

It is an amenable number.

889986420217720 is an abundant number, since it is smaller than the sum of its proper divisors (1398550088914280).

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

889986420217720 is a wasteful number, since it uses less digits than its factorization.

889986420217720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178522929367 (or 3178522929363 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 73.

The spelling of 889986420217720 in words is "eight hundred eighty-nine trillion, nine hundred eighty-six billion, four hundred twenty million, two hundred seventeen thousand, seven hundred twenty".