2128799913 has 8 divisors (see below), whose sum is σ = 2852664000. Its totient is φ = 1412067888.

The previous prime is 2128799851. The next prime is 2128799917. The reversal of 2128799913 is 3199978212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2128799913 - 2⁸ = 2128799657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2128799917) 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, 1782318 + ... + 1783511.

It is an arithmetic number, because the mean of its divisors is an integer number (356583000).

Almost surely, 2^2128799913 is an apocalyptic number.

It is an amenable number.

2128799913 is a deficient number, since it is larger than the sum of its proper divisors (723864087).

2128799913 is a wasteful number, since it uses less digits than its factorization.

2128799913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566031.

The product of its digits is 489888, while the sum is 51.

The square root of 2128799913 is about 46138.9197207737. The cubic root of 2128799913 is about 1286.4066642063.

The spelling of 2128799913 in words is "two billion, one hundred twenty-eight million, seven hundred ninety-nine thousand, nine hundred thirteen".