12181654582851 has 32 divisors (see below), whose sum is σ = 18163686526272. Its totient is φ = 7213377853440.

The previous prime is 12181654582819. The next prime is 12181654582859. The reversal of 12181654582851 is 15828545618121.

It is a happy number.

It is not a de Polignac number, because 12181654582851 - 2⁵ = 12181654582819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12181654582791 and 12181654582800.

It is not an unprimeable number, because it can be changed into a prime (12181654582859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52063380 + ... + 52296833.

It is an arithmetic number, because the mean of its divisors is an integer number (567615203946).

Almost surely, 2^{12181654582851} is an apocalyptic number.

12181654582851 is a deficient number, since it is larger than the sum of its proper divisors (5982031943421).

12181654582851 is a wasteful number, since it uses less digits than its factorization.

12181654582851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104360343.

The product of its digits is 6144000, while the sum is 57.

The spelling of 12181654582851 in words is "twelve trillion, one hundred eighty-one billion, six hundred fifty-four million, five hundred eighty-two thousand, eight hundred fifty-one".