12406805619077 has 2 divisors, whose sum is σ = 12406805619078. Its totient is φ = 12406805619076.

The previous prime is 12406805619041. The next prime is 12406805619107. The reversal of 12406805619077 is 77091650860421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7173687283876 + 5233118335201 = 2678374^2 + 2287601^2 .

It is a cyclic number.

It is not a de Polignac number, because 12406805619077 - 2²⁴ = 12406788841861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12406805619017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6203402809538 + 6203402809539.

It is an arithmetic number, because the mean of its divisors is an integer number (6203402809539).

Almost surely, 2^{12406805619077} is an apocalyptic number.

It is an amenable number.

12406805619077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12406805619077 is an equidigital number, since it uses as much as digits as its factorization.

12406805619077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 12406805619077 in words is "twelve trillion, four hundred six billion, eight hundred five million, six hundred nineteen thousand, seventy-seven".