13347680991 has 8 divisors (see below), whose sum is σ = 17799578160. Its totient is φ = 8897118912.

The previous prime is 13347680971. The next prime is 13347680999. The reversal of 13347680991 is 19908674331.

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

It is not a de Polignac number, because 13347680991 - 2⁵ = 13347680959 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13347680999) 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, 310206 + ... + 350603.

It is an arithmetic number, because the mean of its divisors is an integer number (2224947270).

Almost surely, 2^13347680991 is an apocalyptic number.

13347680991 is a deficient number, since it is larger than the sum of its proper divisors (4451897169).

13347680991 is an equidigital number, since it uses as much as digits as its factorization.

13347680991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667545.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 13347680991 in words is "thirteen billion, three hundred forty-seven million, six hundred eighty thousand, nine hundred ninety-one".