4099128913 has 32 divisors (see below), whose sum is σ = 4769280000. Its totient is φ = 3484091520.

The previous prime is 4099128911. The next prime is 4099128937. The reversal of 4099128913 is 3198219904.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4099128913 - 2¹ = 4099128911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4099128911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6842988 + ... + 6843586.

It is an arithmetic number, because the mean of its divisors is an integer number (149040000).

Almost surely, 2^4099128913 is an apocalyptic number.

It is an amenable number.

4099128913 is a deficient number, since it is larger than the sum of its proper divisors (670151087).

4099128913 is a wasteful number, since it uses less digits than its factorization.

4099128913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 4099128913 is about 64024.4399663129. The cubic root of 4099128913 is about 1600.4073068513.

Subtracting from 4099128913 its reverse (3198219904), we obtain a palindrome (900909009).

The spelling of 4099128913 in words is "four billion, ninety-nine million, one hundred twenty-eight thousand, nine hundred thirteen".