13871333745 has 24 divisors (see below), whose sum is σ = 24046678656. Its totient is φ = 7397111328.

The previous prime is 13871333713. The next prime is 13871333747. The reversal of 13871333745 is 54733317831.

It is not a de Polignac number, because 13871333745 - 2⁵ = 13871333713 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13871333745.

It is not an unprimeable number, because it can be changed into a prime (13871333747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 485014 + ... + 512816.

It is an arithmetic number, because the mean of its divisors is an integer number (1001944944).

Almost surely, 2^13871333745 is an apocalyptic number.

13871333745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13871333745 is a deficient number, since it is larger than the sum of its proper divisors (10175344911).

13871333745 is a wasteful number, since it uses less digits than its factorization.

13871333745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38901 (or 38898 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The spelling of 13871333745 in words is "thirteen billion, eight hundred seventy-one million, three hundred thirty-three thousand, seven hundred forty-five".