52642221188 has 6 divisors (see below), whose sum is σ = 92123887086. Its totient is φ = 26321110592.

The previous prime is 52642221179. The next prime is 52642221193. The reversal of 52642221188 is 88112224625.

It can be written as a sum of positive squares in only one way, i.e., 44163863104 + 8478358084 = 210152^2 + 92078^2 .

It is a super-2 number, since 2×52642221188² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 6580277645 + ... + 6580277652.

It is an arithmetic number, because the mean of its divisors is an integer number (15353981181).

Almost surely, 2^52642221188 is an apocalyptic number.

It is an amenable number.

52642221188 is a deficient number, since it is larger than the sum of its proper divisors (39481665898).

52642221188 is a wasteful number, since it uses less digits than its factorization.

52642221188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13160555301 (or 13160555299 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The spelling of 52642221188 in words is "fifty-two billion, six hundred forty-two million, two hundred twenty-one thousand, one hundred eighty-eight".