2728197537 has 24 divisors (see below), whose sum is σ = 3972112704. Its totient is φ = 1655766144.

The previous prime is 2728197499. The next prime is 2728197551. The reversal of 2728197537 is 7357918272.

It is not a de Polignac number, because 2728197537 - 2¹¹ = 2728195489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2728197537.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2728197037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201268 + ... + 214394.

It is an arithmetic number, because the mean of its divisors is an integer number (165504696).

Almost surely, 2^2728197537 is an apocalyptic number.

It is an amenable number.

2728197537 is a deficient number, since it is larger than the sum of its proper divisors (1243915167).

2728197537 is a wasteful number, since it uses less digits than its factorization.

2728197537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13289 (or 13216 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 51.

The square root of 2728197537 is about 52232.1504152375. The cubic root of 2728197537 is about 1397.3073307071.

The spelling of 2728197537 in words is "two billion, seven hundred twenty-eight million, one hundred ninety-seven thousand, five hundred thirty-seven".