2728752513 has 4 divisors (see below), whose sum is σ = 3638336688. Its totient is φ = 1819168340.

The previous prime is 2728752497. The next prime is 2728752517. The reversal of 2728752513 is 3152578272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2728752513 - 2⁴ = 2728752497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2728752517) 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, 454792083 + ... + 454792088.

It is an arithmetic number, because the mean of its divisors is an integer number (909584172).

Almost surely, 2^2728752513 is an apocalyptic number.

It is an amenable number.

2728752513 is a deficient number, since it is larger than the sum of its proper divisors (909584175).

2728752513 is an equidigital number, since it uses as much as digits as its factorization.

2728752513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909584174.

The product of its digits is 235200, while the sum is 42.

The square root of 2728752513 is about 52237.4627350908. The cubic root of 2728752513 is about 1397.4020720697.

It can be divided in two parts, 27287 and 52513, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 2728752513 in words is "two billion, seven hundred twenty-eight million, seven hundred fifty-two thousand, five hundred thirteen".