13285860545 has 4 divisors (see below), whose sum is σ = 15943032660. Its totient is φ = 10628688432.

The previous prime is 13285860527. The next prime is 13285860551. The reversal of 13285860545 is 54506858231.

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 6894977296 + 6390883249 = 83036^2 + 79943^2 .

It is a cyclic number.

It is not a de Polignac number, because 13285860545 - 2²⁶ = 13218751681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13285860545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328586050 + ... + 1328586059.

It is an arithmetic number, because the mean of its divisors is an integer number (3985758165).

Almost surely, 2^13285860545 is an apocalyptic number.

It is an amenable number.

13285860545 is a deficient number, since it is larger than the sum of its proper divisors (2657172115).

13285860545 is an equidigital number, since it uses as much as digits as its factorization.

13285860545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657172114.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 13285860545 in words is "thirteen billion, two hundred eighty-five million, eight hundred sixty thousand, five hundred forty-five".