4252722186128 has 20 divisors (see below), whose sum is σ = 8873468408028. Its totient is φ = 1962794855040.

The previous prime is 4252722186113. The next prime is 4252722186169. The reversal of 4252722186128 is 8216812272524.

It can be written as a sum of positive squares in 2 ways, for example, as 642767785984 + 3609954400144 = 801728^2 + 1899988^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10222889663 + ... + 10222890078.

Almost surely, 2^{4252722186128} is an apocalyptic number.

It is an amenable number.

4252722186128 is an abundant number, since it is smaller than the sum of its proper divisors (4620746221900).

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

4252722186128 is a wasteful number, since it uses less digits than its factorization.

4252722186128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20445779762 (or 20445779756 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

The spelling of 4252722186128 in words is "four trillion, two hundred fifty-two billion, seven hundred twenty-two million, one hundred eighty-six thousand, one hundred twenty-eight".