13091581823 has 8 divisors (see below), whose sum is σ = 13145045760. Its totient is φ = 13038188760.

The previous prime is 13091581787. The next prime is 13091581831. The reversal of 13091581823 is 32818519031.

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 13091581823 - 2²² = 13087387519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13091581123) 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, 369578 + ... + 403448.

It is an arithmetic number, because the mean of its divisors is an integer number (1643130720).

Almost surely, 2^13091581823 is an apocalyptic number.

13091581823 is a deficient number, since it is larger than the sum of its proper divisors (53463937).

13091581823 is a wasteful number, since it uses less digits than its factorization.

13091581823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35437.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 13091581823 in words is "thirteen billion, ninety-one million, five hundred eighty-one thousand, eight hundred twenty-three".