13965436173 has 48 divisors (see below), whose sum is σ = 20416264704. Its totient is φ = 8486936640.

The previous prime is 13965436169. The next prime is 13965436181. The reversal of 13965436173 is 37163456931.

It is not a de Polignac number, because 13965436173 - 2² = 13965436169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13965436153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18795640 + ... + 18796382.

It is an arithmetic number, because the mean of its divisors is an integer number (425338848).

Almost surely, 2^13965436173 is an apocalyptic number.

13965436173 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13965436173 is a deficient number, since it is larger than the sum of its proper divisors (6450828531).

13965436173 is a wasteful number, since it uses less digits than its factorization.

13965436173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1173 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 48.

The spelling of 13965436173 in words is "thirteen billion, nine hundred sixty-five million, four hundred thirty-six thousand, one hundred seventy-three".