13881505367 has 4 divisors (see below), whose sum is σ = 13888003296. Its totient is φ = 13875007440.

The previous prime is 13881505273. The next prime is 13881505387. The reversal of 13881505367 is 76350518831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13881505367 - 2¹⁴ = 13881488983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881505387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3245759 + ... + 3250032.

It is an arithmetic number, because the mean of its divisors is an integer number (3472000824).

Almost surely, 2^13881505367 is an apocalyptic number.

13881505367 is a deficient number, since it is larger than the sum of its proper divisors (6497929).

13881505367 is an equidigital number, since it uses as much as digits as its factorization.

13881505367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497928.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 13881505367 in words is "thirteen billion, eight hundred eighty-one million, five hundred five thousand, three hundred sixty-seven".