2513728717 has 4 divisors (see below), whose sum is σ = 2518131616. Its totient is φ = 2509325820.

The previous prime is 2513728667. The next prime is 2513728751. The reversal of 2513728717 is 7178273152.

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 2513728717 - 2³¹ = 366245069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2513728417) 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 3 ways as a sum of consecutive naturals, for example, 2200593 + ... + 2201734.

It is an arithmetic number, because the mean of its divisors is an integer number (629532904).

Almost surely, 2^2513728717 is an apocalyptic number.

It is an amenable number.

2513728717 is a deficient number, since it is larger than the sum of its proper divisors (4402899).

2513728717 is an equidigital number, since it uses as much as digits as its factorization.

2513728717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402898.

The product of its digits is 164640, while the sum is 43.

The square root of 2513728717 is about 50137.0992080715. The cubic root of 2513728717 is about 1359.6886392540.

The spelling of 2513728717 in words is "two billion, five hundred thirteen million, seven hundred twenty-eight thousand, seven hundred seventeen".