2870728013 has 4 divisors (see below), whose sum is σ = 2919384480. Its totient is φ = 2822071548.

The previous prime is 2870727971. The next prime is 2870728027. The reversal of 2870728013 is 3108270782.

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 2870728013 - 2⁸ = 2870727757 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 (2870724013) 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, 24328145 + ... + 24328262.

It is an arithmetic number, because the mean of its divisors is an integer number (729846120).

Almost surely, 2^2870728013 is an apocalyptic number.

It is an amenable number.

2870728013 is a deficient number, since it is larger than the sum of its proper divisors (48656467).

2870728013 is an equidigital number, since it uses as much as digits as its factorization.

2870728013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48656466.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 2870728013 is about 53579.1751802881. The cubic root of 2870728013 is about 1421.2288531052.

Adding to 2870728013 its reverse (3108270782), we get a palindrome (5978998795).

The spelling of 2870728013 in words is "two billion, eight hundred seventy million, seven hundred twenty-eight thousand, thirteen".