52218778112 has 30 divisors (see below), whose sum is σ = 104345898723. Its totient is φ = 26106803712.

The previous prime is 52218777929. The next prime is 52218778121. The reversal of 52218778112 is 21187781225.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 26109389056 + 26109389056 = 161584^2 + 161584^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161584.

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 5165639 + ... + 5175737.

Almost surely, 2^52218778112 is an apocalyptic number.

It is an amenable number.

52218778112 is a deficient number, since it is larger than the sum of its proper divisors (52127120611).

52218778112 is an frugal number, since it uses more digits than its factorization.

52218778112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20216 (or 10101 counting only the distinct ones).

The product of its digits is 125440, while the sum is 44.

The spelling of 52218778112 in words is "fifty-two billion, two hundred eighteen million, seven hundred seventy-eight thousand, one hundred twelve".