13841855863 has 12 divisors (see below), whose sum is σ = 15231872880. Its totient is φ = 12569221280.

The previous prime is 13841855861. The next prime is 13841855869. The reversal of 13841855863 is 36855814831.

It is not a de Polignac number, because 13841855863 - 2¹ = 13841855861 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 13841855863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13841855861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42843 + ... + 171811.

It is an arithmetic number, because the mean of its divisors is an integer number (1269322740).

Almost surely, 2^13841855863 is an apocalyptic number.

13841855863 is a deficient number, since it is larger than the sum of its proper divisors (1390017017).

13841855863 is a wasteful number, since it uses less digits than its factorization.

13841855863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129878 (or 129867 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 52.

The spelling of 13841855863 in words is "thirteen billion, eight hundred forty-one million, eight hundred fifty-five thousand, eight hundred sixty-three".