13636644407047 has 4 divisors (see below), whose sum is σ = 13728165510600. Its totient is φ = 13545123303496.

The previous prime is 13636644407041. The next prime is 13636644407101. The reversal of 13636644407047 is 74070444663631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13636644407047 - 2⁷ = 13636644406919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13636644407041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45760551553 + ... + 45760551850.

It is an arithmetic number, because the mean of its divisors is an integer number (3432041377650).

Almost surely, 2^{13636644407047} is an apocalyptic number.

13636644407047 is a deficient number, since it is larger than the sum of its proper divisors (91521103553).

13636644407047 is an equidigital number, since it uses as much as digits as its factorization.

13636644407047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91521103552.

The product of its (nonzero) digits is 24385536, while the sum is 55.

The spelling of 13636644407047 in words is "thirteen trillion, six hundred thirty-six billion, six hundred forty-four million, four hundred seven thousand, forty-seven".