13541387684787 has 12 divisors (see below), whose sum is σ = 19559935681000. Its totient is φ = 9027520957728.

The previous prime is 13541387684771. The next prime is 13541387684813. The reversal of 13541387684787 is 78748678314531.

13541387684787 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 13 + 87 + 68 + 478 + 7 = 666.

13541387684787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13541387684787 - 2⁴ = 13541387684771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13541387584787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4678537 + ... + 6997962.

Almost surely, 2^{13541387684787} is an apocalyptic number.

13541387684787 is a deficient number, since it is larger than the sum of its proper divisors (6018547996213).

13541387684787 is a wasteful number, since it uses less digits than its factorization.

13541387684787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11805362 (or 11805359 counting only the distinct ones).

The product of its digits is 758661120, while the sum is 72.

The spelling of 13541387684787 in words is "thirteen trillion, five hundred forty-one billion, three hundred eighty-seven million, six hundred eighty-four thousand, seven hundred eighty-seven".