845722124832 has 144 divisors (see below), whose sum is σ = 2417365671840. Its totient is φ = 258767548416.

The previous prime is 845722124791. The next prime is 845722124843. The reversal of 845722124832 is 238421227548.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2758488 + ... + 3049704.

It is an arithmetic number, because the mean of its divisors is an integer number (16787261610).

Almost surely, 2^845722124832 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 845722124832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1208682835920).

845722124832 is an abundant number, since it is smaller than the sum of its proper divisors (1571643547008).

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

845722124832 is a wasteful number, since it uses less digits than its factorization.

845722124832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291435 (or 291414 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The spelling of 845722124832 in words is "eight hundred forty-five billion, seven hundred twenty-two million, one hundred twenty-four thousand, eight hundred thirty-two".