13688101247 has 4 divisors (see below), whose sum is σ = 13692997896. Its totient is φ = 13683204600.

The previous prime is 13688101241. The next prime is 13688101249. The reversal of 13688101247 is 74210188631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74210188631 = 97441 ⋅761591.

It is a cyclic number.

It is not a de Polignac number, because 13688101247 - 2¹⁸ = 13687839103 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 (13688101241) 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, 2444129 + ... + 2449722.

It is an arithmetic number, because the mean of its divisors is an integer number (3423249474).

Almost surely, 2^13688101247 is an apocalyptic number.

13688101247 is a deficient number, since it is larger than the sum of its proper divisors (4896649).

13688101247 is an equidigital number, since it uses as much as digits as its factorization.

13688101247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896648.

The product of its (nonzero) digits is 64512, while the sum is 41.

Adding to 13688101247 its reverse (74210188631), we get a palindrome (87898289878).

The spelling of 13688101247 in words is "thirteen billion, six hundred eighty-eight million, one hundred one thousand, two hundred forty-seven".