12428726655744 has 180 divisors, whose sum is σ = 42354530799504. Its totient is φ = 3551064717312.

The previous prime is 12428726655731. The next prime is 12428726655887. The reversal of 12428726655744 is 44755662782421.

12428726655744 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 8 + 72 + 6 + 6 + 557 + 4 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42667647 + ... + 42957950.

Almost surely, 2^{12428726655744} is an apocalyptic number.

12428726655744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12428726655744 is an abundant number, since it is smaller than the sum of its proper divisors (29925804143760).

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

12428726655744 is an frugal number, since it uses more digits than its factorization.

12428726655744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85625632 (or 85625609 counting only the distinct ones).

The product of its digits is 180633600, while the sum is 63.

The spelling of 12428726655744 in words is "twelve trillion, four hundred twenty-eight billion, seven hundred twenty-six million, six hundred fifty-five thousand, seven hundred forty-four".