845589985548 has 144 divisors (see below), whose sum is σ = 2558487386112. Its totient is φ = 212548723200.

The previous prime is 845589985547. The next prime is 845589985619.

845589985548 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (845589985543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1026765 + ... + 1656932.

Almost surely, 2^845589985548 is an apocalyptic number.

It is an amenable number.

845589985548 is an abundant number, since it is smaller than the sum of its proper divisors (1712897400564).

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

845589985548 is a wasteful number, since it uses less digits than its factorization.

845589985548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2683764 (or 2683751 counting only the distinct ones).

The product of its digits is 3317760000, while the sum is 78.

The spelling of 845589985548 in words is "eight hundred forty-five billion, five hundred eighty-nine million, nine hundred eighty-five thousand, five hundred forty-eight".