13868144641 has 8 divisors (see below), whose sum is σ = 15188060160. Its totient is φ = 12584391312.

The previous prime is 13868144623. The next prime is 13868144683. The reversal of 13868144641 is 14644186831.

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

It is not a de Polignac number, because 13868144641 - 2¹⁹ = 13867620353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13868144591 and 13868144600.

It is not an unprimeable number, because it can be changed into a prime (13868147641) 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, 9039745 + ... + 9041278.

It is an arithmetic number, because the mean of its divisors is an integer number (1898507520).

Almost surely, 2^13868144641 is an apocalyptic number.

It is an amenable number.

13868144641 is a deficient number, since it is larger than the sum of its proper divisors (1319915519).

13868144641 is a wasteful number, since it uses less digits than its factorization.

13868144641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18081095.

The product of its digits is 442368, while the sum is 46.

The spelling of 13868144641 in words is "thirteen billion, eight hundred sixty-eight million, one hundred forty-four thousand, six hundred forty-one".