13867804971 has 12 divisors (see below), whose sum is σ = 20050678648. Its totient is φ = 9236247264.

The previous prime is 13867804889. The next prime is 13867805041. The reversal of 13867804971 is 17940876831.

13867804971 is a `hidden beast` number, since 1 + 3 + 86 + 78 + 0 + 497 + 1 = 666.

It is not a de Polignac number, because 13867804971 - 2⁹ = 13867804459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13867804271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 736525 + ... + 755118.

Almost surely, 2^13867804971 is an apocalyptic number.

13867804971 is a deficient number, since it is larger than the sum of its proper divisors (6182873677).

13867804971 is a wasteful number, since it uses less digits than its factorization.

13867804971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492682 (or 1492679 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 13867804971 in words is "thirteen billion, eight hundred sixty-seven million, eight hundred four thousand, nine hundred seventy-one".