13508987452 has 12 divisors (see below), whose sum is σ = 23642992800. Its totient is φ = 6753846656.

The previous prime is 13508987449. The next prime is 13508987461. The reversal of 13508987452 is 25478980531.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13508987452.

It is a congruent number.

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, 113173 + ... + 199564.

It is an arithmetic number, because the mean of its divisors is an integer number (1970249400).

Almost surely, 2^13508987452 is an apocalyptic number.

It is an amenable number.

13508987452 is a deficient number, since it is larger than the sum of its proper divisors (10134005348).

13508987452 is a wasteful number, since it uses less digits than its factorization.

13508987452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323540 (or 323538 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 13508987452 in words is "thirteen billion, five hundred eight million, nine hundred eighty-seven thousand, four hundred fifty-two".