12547873658880 has 864 divisors, whose sum is σ = 51612245586720. Its totient is φ = 2867977912320.

The previous prime is 12547873658863. The next prime is 12547873658909. The reversal of 12547873658880 is 8885637874521.

12547873658880 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 7 + 8 + 7 + 36 + 588 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 12547873658799 and 12547873658808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 470279140 + ... + 470305820.

It is an arithmetic number, because the mean of its divisors is an integer number (59736395355).

Almost surely, 2^{12547873658880} is an apocalyptic number.

12547873658880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12547873658880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25806122793360).

12547873658880 is an abundant number, since it is smaller than the sum of its proper divisors (39064371927840).

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

12547873658880 is an frugal number, since it uses more digits than its factorization.

12547873658880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26739 (or 26698 counting only the distinct ones).

The product of its (nonzero) digits is 722534400, while the sum is 72.

The spelling of 12547873658880 in words is "twelve trillion, five hundred forty-seven billion, eight hundred seventy-three million, six hundred fifty-eight thousand, eight hundred eighty".