13456681822512 has 50 divisors (see below), whose sum is σ = 38947541297148. Its totient is φ = 4485560607072.

The previous prime is 13456681822511. The next prime is 13456681822543. The reversal of 13456681822512 is 21522818665431.

13456681822512 is a `hidden beast` number, since 1 + 3 + 4 + 56 + 68 + 18 + 2 + 2 + 512 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13456681822511) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5191619778 + ... + 5191622369.

Almost surely, 2^{13456681822512} is an apocalyptic number.

13456681822512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13456681822512 is an abundant number, since it is smaller than the sum of its proper divisors (25490859474636).

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

13456681822512 is a wasteful number, since it uses less digits than its factorization.

13456681822512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10383242167 (or 10383242152 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 13456681822512 in words is "thirteen trillion, four hundred fifty-six billion, six hundred eighty-one million, eight hundred twenty-two thousand, five hundred twelve".