13881319445 has 8 divisors (see below), whose sum is σ = 19037238144. Its totient is φ = 9518619024.

The previous prime is 13881319429. The next prime is 13881319457. The reversal of 13881319445 is 54491318831.

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

It is a cyclic number.

It is not a de Polignac number, because 13881319445 - 2⁴ = 13881319429 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 13881319445.

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, 198304529 + ... + 198304598.

It is an arithmetic number, because the mean of its divisors is an integer number (2379654768).

Almost surely, 2^13881319445 is an apocalyptic number.

It is an amenable number.

13881319445 is a deficient number, since it is larger than the sum of its proper divisors (5155918699).

13881319445 is an equidigital number, since it uses as much as digits as its factorization.

13881319445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396609139.

The product of its digits is 414720, while the sum is 47.

The spelling of 13881319445 in words is "thirteen billion, eight hundred eighty-one million, three hundred nineteen thousand, four hundred forty-five".