13617028091 has 8 divisors (see below), whose sum is σ = 14425014480. Its totient is φ = 12818171808.

The previous prime is 13617028027. The next prime is 13617028121. The reversal of 13617028091 is 19082071631.

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 13617028091 - 2⁶ = 13617028027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13617028591) 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, 2279456 + ... + 2285421.

It is an arithmetic number, because the mean of its divisors is an integer number (1803126810).

Almost surely, 2^13617028091 is an apocalyptic number.

13617028091 is a deficient number, since it is larger than the sum of its proper divisors (807986389).

13617028091 is a wasteful number, since it uses less digits than its factorization.

13617028091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565053.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 13617028091 in words is "thirteen billion, six hundred seventeen million, twenty-eight thousand, ninety-one".