13868104821 has 8 divisors (see below), whose sum is σ = 18614906400. Its totient is φ = 9183353232.

The previous prime is 13868104793. The next prime is 13868104837. The reversal of 13868104821 is 12840186831.

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

It is not a de Polignac number, because 13868104821 - 2⁹ = 13868104309 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13868104721) 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, 15511975 + ... + 15512868.

It is an arithmetic number, because the mean of its divisors is an integer number (2326863300).

Almost surely, 2^13868104821 is an apocalyptic number.

It is an amenable number.

13868104821 is a deficient number, since it is larger than the sum of its proper divisors (4746801579).

13868104821 is a wasteful number, since it uses less digits than its factorization.

13868104821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31024995.

The product of its (nonzero) digits is 73728, while the sum is 42.

The spelling of 13868104821 in words is "thirteen billion, eight hundred sixty-eight million, one hundred four thousand, eight hundred twenty-one".