5281109569013 has 4 divisors (see below), whose sum is σ = 5287300788588. Its totient is φ = 5274918349440.

The previous prime is 5281109568991. The next prime is 5281109569069. The reversal of 5281109569013 is 3109659011825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2659893522724 + 2621216046289 = 1630918^2 + 1619017^2 .

It is a cyclic number.

It is not a de Polignac number, because 5281109569013 - 2¹⁰ = 5281109567989 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 (5281109566013) 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, 3095608508 + ... + 3095610213.

It is an arithmetic number, because the mean of its divisors is an integer number (1321825197147).

Almost surely, 2^{5281109569013} is an apocalyptic number.

It is an amenable number.

5281109569013 is a deficient number, since it is larger than the sum of its proper divisors (6191219575).

5281109569013 is an equidigital number, since it uses as much as digits as its factorization.

5281109569013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191219574.

The product of its (nonzero) digits is 583200, while the sum is 50.

The spelling of 5281109569013 in words is "five trillion, two hundred eighty-one billion, one hundred nine million, five hundred sixty-nine thousand, thirteen".