13872843881 has 8 divisors (see below), whose sum is σ = 14982798600. Its totient is φ = 12769005312.

The previous prime is 13872843847. The next prime is 13872843893. The reversal of 13872843881 is 18834827831.

It can be written as a sum of positive squares in 4 ways, for example, as 5552485225 + 8320358656 = 74515^2 + 91216^2 .

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 13872843881 - 2¹⁰ = 13872842857 is a prime.

It is a super-2 number, since 2×13872843881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13872843811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524320 + ... + 1533393.

It is an arithmetic number, because the mean of its divisors is an integer number (1872849825).

Almost surely, 2^13872843881 is an apocalyptic number.

It is an amenable number.

13872843881 is a deficient number, since it is larger than the sum of its proper divisors (1109954719).

13872843881 is a wasteful number, since it uses less digits than its factorization.

13872843881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3058075.

The product of its digits is 2064384, while the sum is 53.

The spelling of 13872843881 in words is "thirteen billion, eight hundred seventy-two million, eight hundred forty-three thousand, eight hundred eighty-one".