13109181796 has 6 divisors (see below), whose sum is σ = 22941068150. Its totient is φ = 6554590896.

The previous prime is 13109181749. The next prime is 13109181817. The reversal of 13109181796 is 69718190131.

It can be written as a sum of positive squares in only one way, i.e., 8052549696 + 5056632100 = 89736^2 + 71110^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1638647721 + ... + 1638647728.

Almost surely, 2^13109181796 is an apocalyptic number.

It is an amenable number.

13109181796 is a deficient number, since it is larger than the sum of its proper divisors (9831886354).

13109181796 is a wasteful number, since it uses less digits than its factorization.

13109181796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277295453 (or 3277295451 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 46.

The spelling of 13109181796 in words is "thirteen billion, one hundred nine million, one hundred eighty-one thousand, seven hundred ninety-six".