4128517212 has 24 divisors (see below), whose sum is σ = 9796483200. Its totient is φ = 1352847216.

The previous prime is 4128517199. The next prime is 4128517219. The reversal of 4128517212 is 2127158214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4128517219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2914912 + ... + 2916327.

It is an arithmetic number, because the mean of its divisors is an integer number (408186800).

Almost surely, 2^4128517212 is an apocalyptic number.

It is an amenable number.

4128517212 is an abundant number, since it is smaller than the sum of its proper divisors (5667965988).

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

4128517212 is a wasteful number, since it uses less digits than its factorization.

4128517212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831305 (or 5831303 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 4128517212 is about 64253.5385173455. The cubic root of 4128517212 is about 1604.2228568490. Note that the first 3 decimals are identical.

The spelling of 4128517212 in words is "four billion, one hundred twenty-eight million, five hundred seventeen thousand, two hundred twelve".