12547054785408 has 512 divisors, whose sum is σ = 39557847329280. Its totient is φ = 3502597570560.

The previous prime is 12547054785313. The next prime is 12547054785409. The reversal of 12547054785408 is 80458745074521.

12547054785408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12547054785409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3900233016 + ... + 3900236232.

It is an arithmetic number, because the mean of its divisors is an integer number (77261420565).

Almost surely, 2^{12547054785408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12547054785408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19778923664640).

12547054785408 is an abundant number, since it is smaller than the sum of its proper divisors (27010792543872).

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

12547054785408 is a wasteful number, since it uses less digits than its factorization.

12547054785408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867 (or 3833 counting only the distinct ones).

The product of its (nonzero) digits is 50176000, while the sum is 60.

The spelling of 12547054785408 in words is "twelve trillion, five hundred forty-seven billion, fifty-four million, seven hundred eighty-five thousand, four hundred eight".