13456781148 has 12 divisors (see below), whose sum is σ = 31399156040. Its totient is φ = 4485593712.

The previous prime is 13456781131. The next prime is 13456781153. The reversal of 13456781148 is 84118765431.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13456781097 and 13456781106.

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, 560699203 + ... + 560699226.

Almost surely, 2^13456781148 is an apocalyptic number.

It is an amenable number.

13456781148 is an abundant number, since it is smaller than the sum of its proper divisors (17942374892).

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

13456781148 is a wasteful number, since it uses less digits than its factorization.

13456781148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121398436 (or 1121398434 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The spelling of 13456781148 in words is "thirteen billion, four hundred fifty-six million, seven hundred eighty-one thousand, one hundred forty-eight".