13970906671 has 4 divisors (see below), whose sum is σ = 13971474000. Its totient is φ = 13970339344.

The previous prime is 13970906669. The next prime is 13970906723. The reversal of 13970906671 is 17660907931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17660907931 = 6359 ⋅2777309.

It is a cyclic number.

It is not a de Polignac number, because 13970906671 - 2¹ = 13970906669 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 (13970906641) 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, 244966 + ... + 296563.

It is an arithmetic number, because the mean of its divisors is an integer number (3492868500).

Almost surely, 2^13970906671 is an apocalyptic number.

13970906671 is a deficient number, since it is larger than the sum of its proper divisors (567329).

13970906671 is an equidigital number, since it uses as much as digits as its factorization.

13970906671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567328.

The product of its (nonzero) digits is 428652, while the sum is 49.

The spelling of 13970906671 in words is "thirteen billion, nine hundred seventy million, nine hundred six thousand, six hundred seventy-one".