2728329123 has 8 divisors (see below), whose sum is σ = 3917600848. Its totient is φ = 1678971744.

The previous prime is 2728329119. The next prime is 2728329139. The reversal of 2728329123 is 3219238272.

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

It is not a de Polignac number, because 2728329123 - 2² = 2728329119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 69957157 = 2728329123 / (2 + 7 + 2 + 8 + 3 + 2 + 9 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728329223) 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, 34978540 + ... + 34978617.

It is an arithmetic number, because the mean of its divisors is an integer number (489700106).

Almost surely, 2^2728329123 is an apocalyptic number.

2728329123 is a deficient number, since it is larger than the sum of its proper divisors (1189271725).

2728329123 is a wasteful number, since it uses less digits than its factorization.

2728329123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69957173.

The product of its digits is 72576, while the sum is 39.

The square root of 2728329123 is about 52233.4100265338. The cubic root of 2728329123 is about 1397.3297952494.

The spelling of 2728329123 in words is "two billion, seven hundred twenty-eight million, three hundred twenty-nine thousand, one hundred twenty-three".