13521619468 has 12 divisors (see below), whose sum is σ = 27043238992. Its totient is φ = 5794979760.

The previous prime is 13521619459. The next prime is 13521619471. The reversal of 13521619468 is 86491612531.

13521619468 is an admirable 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, 241457463 + ... + 241457518.

Almost surely, 2^13521619468 is an apocalyptic number.

It is an amenable number.

13521619468 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13521619468 is a wasteful number, since it uses less digits than its factorization.

13521619468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482914992 (or 482914990 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 13521619468 in words is "thirteen billion, five hundred twenty-one million, six hundred nineteen thousand, four hundred sixty-eight".