2728542859 has 4 divisors (see below), whose sum is σ = 3118334704. Its totient is φ = 2338751016.

The previous prime is 2728542829. The next prime is 2728542863. The reversal of 2728542859 is 9582458272.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2728542859 - 2⁷ = 2728542731 is a prime.

It is a super-2 number, since 2×2728542859² = 14889892266799787762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728542809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194895912 + ... + 194895925.

It is an arithmetic number, because the mean of its divisors is an integer number (779583676).

Almost surely, 2^2728542859 is an apocalyptic number.

2728542859 is a deficient number, since it is larger than the sum of its proper divisors (389791845).

2728542859 is an equidigital number, since it uses as much as digits as its factorization.

2728542859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389791844.

The product of its digits is 3225600, while the sum is 52.

The square root of 2728542859 is about 52235.4559566584. The cubic root of 2728542859 is about 1397.3662830128.

The spelling of 2728542859 in words is "two billion, seven hundred twenty-eight million, five hundred forty-two thousand, eight hundred fifty-nine".