12546089866069 has 2 divisors, whose sum is σ = 12546089866070. Its totient is φ = 12546089866068.

The previous prime is 12546089866061. The next prime is 12546089866201. The reversal of 12546089866069 is 96066898064521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8075770404100 + 4470319461969 = 2841790^2 + 2114313^2 .

It is a cyclic number.

It is not a de Polignac number, because 12546089866069 - 2³ = 12546089866061 is a prime.

It is a super-2 number, since 2×12546089866069² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12546089865989 and 12546089866007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12546089866061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6273044933034 + 6273044933035.

It is an arithmetic number, because the mean of its divisors is an integer number (6273044933035).

Almost surely, 2^{12546089866069} is an apocalyptic number.

It is an amenable number.

12546089866069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12546089866069 is an equidigital number, since it uses as much as digits as its factorization.

12546089866069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 268738560, while the sum is 70.

The spelling of 12546089866069 in words is "twelve trillion, five hundred forty-six billion, eighty-nine million, eight hundred sixty-six thousand, sixty-nine".