13691217347 has 8 divisors (see below), whose sum is σ = 14274854400. Its totient is φ = 13115015424.

The previous prime is 13691217343. The next prime is 13691217373. The reversal of 13691217347 is 74371219631.

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 13691217347 - 2² = 13691217343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13691217298 and 13691217307.

It is not an unprimeable number, because it can be changed into a prime (13691217343) 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, 1855022 + ... + 1862387.

It is an arithmetic number, because the mean of its divisors is an integer number (1784356800).

Almost surely, 2^13691217347 is an apocalyptic number.

13691217347 is a deficient number, since it is larger than the sum of its proper divisors (583637053).

13691217347 is a wasteful number, since it uses less digits than its factorization.

13691217347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717565.

The product of its digits is 190512, while the sum is 44.

The spelling of 13691217347 in words is "thirteen billion, six hundred ninety-one million, two hundred seventeen thousand, three hundred forty-seven".