12866724690624 has 336 divisors, whose sum is σ = 46589751128160. Its totient is φ = 3459959193600.

The previous prime is 12866724690613. The next prime is 12866724690661. The reversal of 12866724690624 is 42609642766821.

It is a happy number.

12866724690624 is a `hidden beast` number, since 1 + 2 + 86 + 6 + 72 + 469 + 0 + 6 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

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, 3029977 + ... + 5908824.

Almost surely, 2^{12866724690624} is an apocalyptic number.

12866724690624 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12866724690624 is an abundant number, since it is smaller than the sum of its proper divisors (33723026437536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12866724690624 is a wasteful number, since it uses less digits than its factorization.

12866724690624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8938853 (or 8938830 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 12866724690624 in words is "twelve trillion, eight hundred sixty-six billion, seven hundred twenty-four million, six hundred ninety thousand, six hundred twenty-four".