12012523667858 has 96 divisors (see below), whose sum is σ = 22774034448000. Its totient is φ = 4721595411456.

The previous prime is 12012523667779. The next prime is 12012523667861. The reversal of 12012523667858 is 85876632521021.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13271810 + ... + 14148002.

It is an arithmetic number, because the mean of its divisors is an integer number (237229525500).

Almost surely, 2^{12012523667858} is an apocalyptic number.

12012523667858 is a deficient number, since it is larger than the sum of its proper divisors (10761510780142).

12012523667858 is a wasteful number, since it uses less digits than its factorization.

12012523667858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876464 (or 876457 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 12012523667858 in words is "twelve trillion, twelve billion, five hundred twenty-three million, six hundred sixty-seven thousand, eight hundred fifty-eight".