13185797888 has 36 divisors (see below), whose sum is σ = 26361100080. Its totient is φ = 6582626304.

The previous prime is 13185797861. The next prime is 13185797893. The reversal of 13185797888 is 88879758131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125828 + ... + 205436.

It is an arithmetic number, because the mean of its divisors is an integer number (732252780).

Almost surely, 2^13185797888 is an apocalyptic number.

It is an amenable number.

13185797888 is a deficient number, since it is larger than the sum of its proper divisors (13175302192).

13185797888 is an frugal number, since it uses more digits than its factorization.

13185797888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80272 (or 80258 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 65.

The spelling of 13185797888 in words is "thirteen billion, one hundred eighty-five million, seven hundred ninety-seven thousand, eight hundred eighty-eight".