889511220000 has 1890 divisors, whose sum is σ = 3749624780517. Its totient is φ = 207432576000.

The previous prime is 889511219999. The next prime is 889511220007. The reversal of 889511220000 is 22115988.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 8 ways, for example, as 346831477776 + 542679742224 = 588924^2 + 736668^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=666900.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (889511220007) by changing a digit.

It is a polite number, since it can be written in 314 ways as a sum of consecutive naturals, for example, 46816379991 + ... + 46816380009.

Almost surely, 2^889511220000 is an apocalyptic number.

889511220000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889511220000

889511220000 is an abundant number, since it is smaller than the sum of its proper divisors (2860113560517).

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

889511220000 is an equidigital number, since it uses as much as digits as its factorization.

889511220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 42 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

Adding to 889511220000 its reverse (22115988), we get a palindrome (889533335988).

The spelling of 889511220000 in words is "eight hundred eighty-nine billion, five hundred eleven million, two hundred twenty thousand".