13548809474856 has 48 divisors (see below), whose sum is σ = 38053755012000. Its totient is φ = 4516269824304.

The previous prime is 13548809474819. The next prime is 13548809474881. The reversal of 13548809474856 is 65847490884531.

13548809474856 is a `hidden beast` number, since 1 + 3 + 5 + 488 + 0 + 94 + 7 + 4 + 8 + 56 = 666.

13548809474856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3484774156 + ... + 3484778043.

It is an arithmetic number, because the mean of its divisors is an integer number (792786562750).

Almost surely, 2^{13548809474856} is an apocalyptic number.

It is an amenable number.

13548809474856 is an abundant number, since it is smaller than the sum of its proper divisors (24504945537144).

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

13548809474856 is an equidigital number, since it uses as much as digits as its factorization.

13548809474856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6969552220 (or 6969552204 counting only the distinct ones).

The product of its (nonzero) digits is 928972800, while the sum is 72.

The spelling of 13548809474856 in words is "thirteen trillion, five hundred forty-eight billion, eight hundred nine million, four hundred seventy-four thousand, eight hundred fifty-six".