2728299545 has 8 divisors (see below), whose sum is σ = 3287545800. Its totient is φ = 2173582080.

The previous prime is 2728299533. The next prime is 2728299571. The reversal of 2728299545 is 5459928272.

It can be written as a sum of positive squares in 4 ways, for example, as 209062681 + 2519236864 = 14459^2 + 50192^2 .

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

It is not a de Polignac number, because 2728299545 - 2²⁰ = 2727250969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1130870 + ... + 1133279.

It is an arithmetic number, because the mean of its divisors is an integer number (410943225).

Almost surely, 2^2728299545 is an apocalyptic number.

It is an amenable number.

2728299545 is a deficient number, since it is larger than the sum of its proper divisors (559246255).

2728299545 is a wasteful number, since it uses less digits than its factorization.

2728299545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264395.

The product of its digits is 3628800, while the sum is 53.

The square root of 2728299545 is about 52233.1268928063. The cubic root of 2728299545 is about 1397.3247457156.

The spelling of 2728299545 in words is "two billion, seven hundred twenty-eight million, two hundred ninety-nine thousand, five hundred forty-five".