12681500054399 has 16 divisors (see below), whose sum is σ = 14043607388160. Its totient is φ = 11355572813760.

The previous prime is 12681500054393. The next prime is 12681500054417. The reversal of 12681500054399 is 99345000518621.

It is a cyclic number.

It is not a de Polignac number, because 12681500054399 - 2⁴ = 12681500054383 is a prime.

It is a super-3 number, since 3×12681500054399³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12681500054399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12681500054393) 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 15 ways as a sum of consecutive naturals, for example, 32459294 + ... + 32847659.

It is an arithmetic number, because the mean of its divisors is an integer number (877725461760).

Almost surely, 2^{12681500054399} is an apocalyptic number.

12681500054399 is a deficient number, since it is larger than the sum of its proper divisors (1362107333761).

12681500054399 is a wasteful number, since it uses less digits than its factorization.

12681500054399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65307230.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 12681500054399 in words is "twelve trillion, six hundred eighty-one billion, five hundred million, fifty-four thousand, three hundred ninety-nine".