13346679921 has 8 divisors (see below), whose sum is σ = 17814368544. Its totient is φ = 8888388960.

The previous prime is 13346679919. The next prime is 13346679961. The reversal of 13346679921 is 12997664331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13346679921 - 2¹ = 13346679919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13346679961) 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, 2346100 + ... + 2351781.

It is an arithmetic number, because the mean of its divisors is an integer number (2226796068).

Almost surely, 2^13346679921 is an apocalyptic number.

It is an amenable number.

13346679921 is a deficient number, since it is larger than the sum of its proper divisors (4467688623).

13346679921 is an equidigital number, since it uses as much as digits as its factorization.

13346679921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698831.

The product of its digits is 1469664, while the sum is 51.

The spelling of 13346679921 in words is "thirteen billion, three hundred forty-six million, six hundred seventy-nine thousand, nine hundred twenty-one".