889117647012 has 144 divisors (see below), whose sum is σ = 2642820485760. Its totient is φ = 246714564096.

The previous prime is 889117647001. The next prime is 889117647013. The reversal of 889117647012 is 210746711988.

889117647012 is a `hidden beast` number, since 8 + 8 + 91 + 1 + 76 + 470 + 12 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 889117647012.

It is not an unprimeable number, because it can be changed into a prime (889117647013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5013064 + ... + 5187392.

It is an arithmetic number, because the mean of its divisors is an integer number (18352920040).

Almost surely, 2^889117647012 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 889117647012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321410242880).

889117647012 is an abundant number, since it is smaller than the sum of its proper divisors (1753702838748).

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

889117647012 is a wasteful number, since it uses less digits than its factorization.

889117647012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174930 (or 174925 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 54.

The spelling of 889117647012 in words is "eight hundred eighty-nine billion, one hundred seventeen million, six hundred forty-seven thousand, twelve".