12653873973 has 128 divisors (see below), whose sum is σ = 22197862400. Its totient is φ = 7054387200.

The previous prime is 12653873963. The next prime is 12653873987. The reversal of 12653873973 is 37937835621.

12653873973 is a `hidden beast` number, since 1 + 2 + 6 + 538 + 7 + 39 + 73 = 666.

It is not a de Polignac number, because 12653873973 - 2⁴ = 12653873957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12653873963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20053368 + ... + 20053998.

It is an arithmetic number, because the mean of its divisors is an integer number (173420800).

Almost surely, 2^12653873973 is an apocalyptic number.

12653873973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12653873973 is a deficient number, since it is larger than the sum of its proper divisors (9543988427).

12653873973 is a wasteful number, since it uses less digits than its factorization.

12653873973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 794 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The spelling of 12653873973 in words is "twelve billion, six hundred fifty-three million, eight hundred seventy-three thousand, nine hundred seventy-three".