13863755856 has 40 divisors (see below), whose sum is σ = 35818992160. Its totient is φ = 4620698496.

The previous prime is 13863755831. The next prime is 13863755869. The reversal of 13863755856 is 65855736831.

It is a junction number, because it is equal to n+sod(n) for n = 13863755796 and 13863755805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665730 + ... + 686238.

It is an arithmetic number, because the mean of its divisors is an integer number (895474804).

Almost surely, 2^13863755856 is an apocalyptic number.

13863755856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13863755856 is an abundant number, since it is smaller than the sum of its proper divisors (21955236304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13863755856 is a wasteful number, since it uses less digits than its factorization.

13863755856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34603 (or 34597 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The spelling of 13863755856 in words is "thirteen billion, eight hundred sixty-three million, seven hundred fifty-five thousand, eight hundred fifty-six".