12061755878472 has 96 divisors (see below), whose sum is σ = 33031731532800. Its totient is φ = 3975932967552.

The previous prime is 12061755878411. The next prime is 12061755878483. The reversal of 12061755878472 is 27487855716021.

12061755878472 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 1 + 7 + 5 + 587 + 8 + 47 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 658854 + ... + 4955562.

It is an arithmetic number, because the mean of its divisors is an integer number (344080536800).

Almost surely, 2^{12061755878472} is an apocalyptic number.

12061755878472 is a gapful number since it is divisible by the number (12) 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 12061755878472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16515865766400).

12061755878472 is an abundant number, since it is smaller than the sum of its proper divisors (20969975654328).

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

12061755878472 is a wasteful number, since it uses less digits than its factorization.

12061755878472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4297155 (or 4297148 counting only the distinct ones).

The product of its (nonzero) digits is 52684800, while the sum is 63.

The spelling of 12061755878472 in words is "twelve trillion, sixty-one billion, seven hundred fifty-five million, eight hundred seventy-eight thousand, four hundred seventy-two".