13085437369 has 4 divisors (see below), whose sum is σ = 13404594420. Its totient is φ = 12766280320.

The previous prime is 13085437363. The next prime is 13085437397. The reversal of 13085437369 is 96373458031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96373458031 = 17 ⋅5669026943.

It can be written as a sum of positive squares in 2 ways, for example, as 1143318969 + 11942118400 = 33813^2 + 109280^2 .

It is a cyclic number.

It is not a de Polignac number, because 13085437369 - 2⁷ = 13085437241 is a prime.

It is a super-2 number, since 2×13085437369² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13085437363) 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, 159578464 + ... + 159578545.

It is an arithmetic number, because the mean of its divisors is an integer number (3351148605).

Almost surely, 2^13085437369 is an apocalyptic number.

It is an amenable number.

13085437369 is a deficient number, since it is larger than the sum of its proper divisors (319157051).

13085437369 is an equidigital number, since it uses as much as digits as its factorization.

13085437369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319157050.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 13085437369 in words is "thirteen billion, eighty-five million, four hundred thirty-seven thousand, three hundred sixty-nine".