52199197128 has 48 divisors (see below), whose sum is σ = 152247661020. Its totient is φ = 16061291136.

The previous prime is 52199197093. The next prime is 52199197157. The reversal of 52199197128 is 82179199125.

It is a happy number.

52199197128 is a `hidden beast` number, since 521 + 9 + 9 + 1 + 97 + 1 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 36342847044 + 15856350084 = 190638^2 + 125922^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27883251 + ... + 27885122.

Almost surely, 2^52199197128 is an apocalyptic number.

It is an amenable number.

52199197128 is an abundant number, since it is smaller than the sum of its proper divisors (100048463892).

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

52199197128 is a wasteful number, since it uses less digits than its factorization.

52199197128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55768398 (or 55768391 counting only the distinct ones).

The product of its digits is 816480, while the sum is 54.

The spelling of 52199197128 in words is "fifty-two billion, one hundred ninety-nine million, one hundred ninety-seven thousand, one hundred twenty-eight".