2728234513 has 8 divisors (see below), whose sum is σ = 2768213448. Its totient is φ = 2688497664.

The previous prime is 2728234499. The next prime is 2728234541. The reversal of 2728234513 is 3154328272.

It can be written as a sum of positive squares in 4 ways, for example, as 134165889 + 2594068624 = 11583^2 + 50932^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2728234513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2728234543) 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, 37756 + ... + 82957.

It is an arithmetic number, because the mean of its divisors is an integer number (346026681).

Almost surely, 2^2728234513 is an apocalyptic number.

It is an amenable number.

2728234513 is a deficient number, since it is larger than the sum of its proper divisors (39978935).

2728234513 is a wasteful number, since it uses less digits than its factorization.

2728234513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121043.

The product of its digits is 80640, while the sum is 37.

The square root of 2728234513 is about 52232.5043722776. The cubic root of 2728234513 is about 1397.3136433735.

The spelling of 2728234513 in words is "two billion, seven hundred twenty-eight million, two hundred thirty-four thousand, five hundred thirteen".