13093520539009 has 3 divisors (see below), whose sum is σ = 13093524157507. Its totient is φ = 13093516920512.

The previous prime is 13093520538997. The next prime is 13093520539013. The reversal of 13093520539009 is 90093502539031.

The square root of 13093520539009 is 3618497.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 12377344241025 + 716176297984 = 3518145^2 + 846272^2 .

It is not a de Polignac number, because 13093520539009 - 2¹⁹ = 13093520014721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13093520539909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1809249 + ... + 5427745.

Almost surely, 2^{13093520539009} is an apocalyptic number.

13093520539009 is the 3618497-th square number.

13093520539009 is the 1809249-th centered octagonal number.

It is an amenable number.

13093520539009 is a deficient number, since it is larger than the sum of its proper divisors (3618498).

13093520539009 is an frugal number, since it uses more digits than its factorization.

13093520539009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7236994 (or 3618497 counting only the distinct ones).

The product of its (nonzero) digits is 984150, while the sum is 49.

Multiplying 13093520539009 by its sum of digits (49), we get a square (641582506411441 = 25329479²).

The spelling of 13093520539009 in words is "thirteen trillion, ninety-three billion, five hundred twenty million, five hundred thirty-nine thousand, nine".