28063130513 has 4 divisors (see below), whose sum is σ = 30614324208. Its totient is φ = 25511936820.

The previous prime is 28063130503. The next prime is 28063130521. The reversal of 28063130513 is 31503136082.

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 28063130513 - 2¹⁰ = 28063129489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28063130513.

It is not an unprimeable number, because it can be changed into a prime (28063130503) 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, 1275596831 + ... + 1275596852.

It is an arithmetic number, because the mean of its divisors is an integer number (7653581052).

Almost surely, 2^28063130513 is an apocalyptic number.

It is an amenable number.

28063130513 is a deficient number, since it is larger than the sum of its proper divisors (2551193695).

28063130513 is a wasteful number, since it uses less digits than its factorization.

28063130513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551193694.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 28063130513 its reverse (31503136082), we get a palindrome (59566266595).

The spelling of 28063130513 in words is "twenty-eight billion, sixty-three million, one hundred thirty thousand, five hundred thirteen".