12673736565 has 48 divisors (see below), whose sum is σ = 24033811968. Its totient is φ = 5684375424.

The previous prime is 12673736563. The next prime is 12673736587. The reversal of 12673736565 is 56563737621.

It is not a de Polignac number, because 12673736565 - 2¹ = 12673736563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12673736563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123717 + ... + 201626.

It is an arithmetic number, because the mean of its divisors is an integer number (500704416).

Almost surely, 2^12673736565 is an apocalyptic number.

12673736565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12673736565 is a deficient number, since it is larger than the sum of its proper divisors (11360075403).

12673736565 is a wasteful number, since it uses less digits than its factorization.

12673736565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325418 (or 325411 counting only the distinct ones).

The product of its digits is 4762800, while the sum is 51.

The spelling of 12673736565 in words is "twelve billion, six hundred seventy-three million, seven hundred thirty-six thousand, five hundred sixty-five".