845844448548 has 72 divisors (see below), whose sum is σ = 2170766969280. Its totient is φ = 256151403200.

The previous prime is 845844448499. The next prime is 845844448591.

845844448548 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×845844448548² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

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 23 ways as a sum of consecutive naturals, for example, 2076838 + ... + 2450498.

It is an arithmetic number, because the mean of its divisors is an integer number (30149541240).

Almost surely, 2^845844448548 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 845844448548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085383484640).

845844448548 is an abundant number, since it is smaller than the sum of its proper divisors (1324922520732).

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

845844448548 is a wasteful number, since it uses less digits than its factorization.

845844448548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375249 (or 375236 counting only the distinct ones).

The product of its digits is 419430400, while the sum is 66.

The spelling of 845844448548 in words is "eight hundred forty-five billion, eight hundred forty-four million, four hundred forty-eight thousand, five hundred forty-eight".