2728573849 has 2 divisors, whose sum is σ = 2728573850. Its totient is φ = 2728573848.

The previous prime is 2728573829. The next prime is 2728573873. The reversal of 2728573849 is 9483758272.

It is a happy number.

2728573849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1663008400 + 1065565449 = 40780^2 + 32643^2 .

It is a cyclic number.

It is not a de Polignac number, because 2728573849 - 2⁵ = 2728573817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2728573849.

It is not a weakly prime, because it can be changed into another prime (2728573829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1364286924 + 1364286925.

It is an arithmetic number, because the mean of its divisors is an integer number (1364286925).

Almost surely, 2^2728573849 is an apocalyptic number.

It is an amenable number.

2728573849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2728573849 is an equidigital number, since it uses as much as digits as its factorization.

2728573849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 55.

The square root of 2728573849 is about 52235.7525934106. The cubic root of 2728573849 is about 1397.3715732866.

The spelling of 2728573849 in words is "two billion, seven hundred twenty-eight million, five hundred seventy-three thousand, eight hundred forty-nine".