4128813091 has 16 divisors (see below), whose sum is σ = 4569705504. Its totient is φ = 3705675264.

The previous prime is 4128813077. The next prime is 4128813133. The reversal of 4128813091 is 1903188214.

4128813091 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4128813091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 4128813091.

It is not an unprimeable number, because it can be changed into a prime (4128813041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391976 + ... + 1394938.

It is an arithmetic number, because the mean of its divisors is an integer number (285606594).

Almost surely, 2^4128813091 is an apocalyptic number.

4128813091 is a deficient number, since it is larger than the sum of its proper divisors (440892413).

4128813091 is a wasteful number, since it uses less digits than its factorization.

4128813091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5910.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 4128813091 is about 64255.8409096014. The cubic root of 4128813091 is about 1604.2611792855.

The spelling of 4128813091 in words is "four billion, one hundred twenty-eight million, eight hundred thirteen thousand, ninety-one".