12923449806388 has 12 divisors (see below), whose sum is σ = 24672040539552. Its totient is φ = 5874295366520.

The previous prime is 12923449806367. The next prime is 12923449806389. The reversal of 12923449806388 is 88360894432921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12923449806389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146857384120 + ... + 146857384207.

It is an arithmetic number, because the mean of its divisors is an integer number (2056003378296).

Almost surely, 2^{12923449806388} is an apocalyptic number.

It is an amenable number.

12923449806388 is a deficient number, since it is larger than the sum of its proper divisors (11748590733164).

12923449806388 is a wasteful number, since it uses less digits than its factorization.

12923449806388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293714768342 (or 293714768340 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 67.

The spelling of 12923449806388 in words is "twelve trillion, nine hundred twenty-three billion, four hundred forty-nine million, eight hundred six thousand, three hundred eighty-eight".