13506026289 has 8 divisors (see below), whose sum is σ = 20580611520. Its totient is φ = 7717729296.

The previous prime is 13506026249. The next prime is 13506026299. The reversal of 13506026289 is 98262060531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13506026289 - 2⁸ = 13506026033 is a prime.

It is a super-2 number, since 2×13506026289² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 13506026289.

It is not an unprimeable number, because it can be changed into a prime (13506026239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321572034 + ... + 321572075.

It is an arithmetic number, because the mean of its divisors is an integer number (2572576440).

Almost surely, 2^13506026289 is an apocalyptic number.

It is an amenable number.

13506026289 is a deficient number, since it is larger than the sum of its proper divisors (7074585231).

13506026289 is an equidigital number, since it uses as much as digits as its factorization.

13506026289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643144119.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 13506026289 in words is "thirteen billion, five hundred six million, twenty-six thousand, two hundred eighty-nine".