4128684129 has 40 divisors (see below), whose sum is σ = 6409244160. Its totient is φ = 2645784000.

The previous prime is 4128684127. The next prime is 4128684143. The reversal of 4128684129 is 9214868214.

4128684129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4128684129 - 2¹ = 4128684127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4128684127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 373717 + ... + 384605.

It is an arithmetic number, because the mean of its divisors is an integer number (160231104).

Almost surely, 2^4128684129 is an apocalyptic number.

It is an amenable number.

4128684129 is a deficient number, since it is larger than the sum of its proper divisors (2280560031).

4128684129 is a wasteful number, since it uses less digits than its factorization.

4128684129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11083 (or 11074 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 4128684129 is about 64254.8373976621. The cubic root of 4128684129 is about 1604.2444762702.

The spelling of 4128684129 in words is "four billion, one hundred twenty-eight million, six hundred eighty-four thousand, one hundred twenty-nine".