889445154816 has 189 divisors, whose sum is σ = 2577903992391. Its totient is φ = 295515979776.

The previous prime is 889445154811. The next prime is 889445154817. The reversal of 889445154816 is 618451544988.

It is a happy number.

The square root of 889445154816 is 943104.

It is a perfect power (a square), and thus also a powerful number.

889445154816 is a `hidden beast` number, since 8 + 89 + 4 + 4 + 5 + 1 + 548 + 1 + 6 = 666.

It is a super-2 number, since 2×889445154816² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (889445154811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2897215335 + ... + 2897215641.

Almost surely, 2^889445154816 is an apocalyptic number.

889445154816 is the 943104-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889445154816

889445154816 is an abundant number, since it is smaller than the sum of its proper divisors (1688458837575).

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

889445154816 is an frugal number, since it uses more digits than its factorization.

889445154816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 312 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 63.

The spelling of 889445154816 in words is "eight hundred eighty-nine billion, four hundred forty-five million, one hundred fifty-four thousand, eight hundred sixteen".