13381407528 has 16 divisors (see below), whose sum is σ = 33453518880. Its totient is φ = 4460469168.

The previous prime is 13381407509. The next prime is 13381407551. The reversal of 13381407528 is 82570418331.

It is a self number, because there is not a number n which added to its sum of digits gives 13381407528.

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, 278779300 + ... + 278779347.

It is an arithmetic number, because the mean of its divisors is an integer number (2090844930).

Almost surely, 2^13381407528 is an apocalyptic number.

It is an amenable number.

13381407528 is an abundant number, since it is smaller than the sum of its proper divisors (20072111352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13381407528 is a wasteful number, since it uses less digits than its factorization.

13381407528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557558656 (or 557558652 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 13381407528 in words is "thirteen billion, three hundred eighty-one million, four hundred seven thousand, five hundred twenty-eight".