12412051181851 has 2 divisors, whose sum is σ = 12412051181852. Its totient is φ = 12412051181850.

The previous prime is 12412051181843. The next prime is 12412051181891. The reversal of 12412051181851 is 15818115021421.

It is a happy number.

It is an a-pointer prime, because the next prime (12412051181891) can be obtained adding 12412051181851 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12412051181851 - 2³ = 12412051181843 is a prime.

It is not a weakly prime, because it can be changed into another prime (12412051181891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6206025590925 + 6206025590926.

It is an arithmetic number, because the mean of its divisors is an integer number (6206025590926).

Almost surely, 2^{12412051181851} is an apocalyptic number.

12412051181851 is a deficient number, since it is larger than the sum of its proper divisors (1).

12412051181851 is an equidigital number, since it uses as much as digits as its factorization.

12412051181851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25600, while the sum is 40.

The spelling of 12412051181851 in words is "twelve trillion, four hundred twelve billion, fifty-one million, one hundred eighty-one thousand, eight hundred fifty-one".