13961668669 has 8 divisors (see below), whose sum is σ = 15074906112. Its totient is φ = 12854040240.

The previous prime is 13961668649. The next prime is 13961668687. The reversal of 13961668669 is 96686616931.

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 13961668669 - 2¹⁹ = 13961144381 is a prime.

It is a super-3 number, since 3×13961668669³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13961668619) 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, 1397077 + ... + 1407034.

It is an arithmetic number, because the mean of its divisors is an integer number (1884363264).

Almost surely, 2^13961668669 is an apocalyptic number.

It is an amenable number.

13961668669 is a deficient number, since it is larger than the sum of its proper divisors (1113237443).

13961668669 is a wasteful number, since it uses less digits than its factorization.

13961668669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2804507.

The product of its digits is 15116544, while the sum is 61.

The spelling of 13961668669 in words is "thirteen billion, nine hundred sixty-one million, six hundred sixty-eight thousand, six hundred sixty-nine".