78820944224 has 96 divisors (see below), whose sum is σ = 177209690112. Its totient is φ = 34183296000.

The previous prime is 78820944221. The next prime is 78820944281. The reversal of 78820944224 is 42244902887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78820944221) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 723884 + ... + 825620.

It is an arithmetic number, because the mean of its divisors is an integer number (1845934272).

Almost surely, 2^78820944224 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 78820944224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88604845056).

78820944224 is an abundant number, since it is smaller than the sum of its proper divisors (98388745888).

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

78820944224 is a wasteful number, since it uses less digits than its factorization.

78820944224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101860 (or 101852 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 50.

The spelling of 78820944224 in words is "seventy-eight billion, eight hundred twenty million, nine hundred forty-four thousand, two hundred twenty-four".