13531385875 has 64 divisors (see below), whose sum is σ = 21323907072. Its totient is φ = 8352960000.

The previous prime is 13531385873. The next prime is 13531385887. The reversal of 13531385875 is 57858313531.

It is not a de Polignac number, because 13531385875 - 2¹ = 13531385873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531385873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 322350 + ... + 361900.

It is an arithmetic number, because the mean of its divisors is an integer number (333186048).

Almost surely, 2^13531385875 is an apocalyptic number.

13531385875 is a deficient number, since it is larger than the sum of its proper divisors (7792521197).

13531385875 is a wasteful number, since it uses less digits than its factorization.

13531385875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39613 (or 39603 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 49.

The spelling of 13531385875 in words is "thirteen billion, five hundred thirty-one million, three hundred eighty-five thousand, eight hundred seventy-five".