13635222347 has 8 divisors (see below), whose sum is σ = 13771182480. Its totient is φ = 13499460000.

The previous prime is 13635222343. The next prime is 13635222397. The reversal of 13635222347 is 74322253631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13635222347 - 2² = 13635222343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13635222347.

It is not an unprimeable number, because it can be changed into a prime (13635222343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91097 + ... + 188597.

It is an arithmetic number, because the mean of its divisors is an integer number (1721397810).

Almost surely, 2^13635222347 is an apocalyptic number.

13635222347 is a deficient number, since it is larger than the sum of its proper divisors (135960133).

13635222347 is a wasteful number, since it uses less digits than its factorization.

13635222347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98893.

The product of its digits is 181440, while the sum is 38.

Adding to 13635222347 its reverse (74322253631), we get a palindrome (87957475978).

The spelling of 13635222347 in words is "thirteen billion, six hundred thirty-five million, two hundred twenty-two thousand, three hundred forty-seven".