889067721984 has 144 divisors (see below), whose sum is σ = 2550951342912. Its totient is φ = 273267523584.

The previous prime is 889067721977. The next prime is 889067721991. The reversal of 889067721984 is 489127760988.

It is an interprime number because it is at equal distance from previous prime (889067721977) and next prime (889067721991).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9407832 + ... + 9501864.

Almost surely, 2^889067721984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889067721984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275475671456).

889067721984 is an abundant number, since it is smaller than the sum of its proper divisors (1661883620928).

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

889067721984 is a wasteful number, since it uses less digits than its factorization.

889067721984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95012 (or 94998 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 69.

The spelling of 889067721984 in words is "eight hundred eighty-nine billion, sixty-seven million, seven hundred twenty-one thousand, nine hundred eighty-four".