13108809291 has 16 divisors (see below), whose sum is σ = 18128548128. Its totient is φ = 8418816000.

The previous prime is 13108809283. The next prime is 13108809347. The reversal of 13108809291 is 19290880131.

It is not a de Polignac number, because 13108809291 - 2³ = 13108809283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13108809281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573430 + ... + 595851.

It is an arithmetic number, because the mean of its divisors is an integer number (1133034258).

Almost surely, 2^13108809291 is an apocalyptic number.

13108809291 is a deficient number, since it is larger than the sum of its proper divisors (5019738837).

13108809291 is a wasteful number, since it uses less digits than its factorization.

13108809291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169422.

The product of its (nonzero) digits is 31104, while the sum is 42.

The spelling of 13108809291 in words is "thirteen billion, one hundred eight million, eight hundred nine thousand, two hundred ninety-one".