12840336173 has 36 divisors (see below), whose sum is σ = 15851864160. Its totient is φ = 10341735264.

The previous prime is 12840336169. The next prime is 12840336193. The reversal of 12840336173 is 37163304821.

It is not a de Polignac number, because 12840336173 - 2² = 12840336169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12840336133) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 48822440 + ... + 48822702.

It is an arithmetic number, because the mean of its divisors is an integer number (440329560).

Almost surely, 2^12840336173 is an apocalyptic number.

It is an amenable number.

12840336173 is a deficient number, since it is larger than the sum of its proper divisors (3011527987).

12840336173 is an equidigital number, since it uses as much as digits as its factorization.

12840336173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 12840336173 in words is "twelve billion, eight hundred forty million, three hundred thirty-six thousand, one hundred seventy-three".