12001967556769 has 2 divisors, whose sum is σ = 12001967556770. Its totient is φ = 12001967556768.

The previous prime is 12001967556749. The next prime is 12001967556797. The reversal of 12001967556769 is 96765576910021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7013958998544 + 4988008558225 = 2648388^2 + 2233385^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001967556769 - 2¹¹ = 12001967554721 is a prime.

It is a super-2 number, since 2×12001967556769² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12001967556769.

It is not a weakly prime, because it can be changed into another prime (12001967556749) 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 as a sum of consecutive naturals, namely, 6000983778384 + 6000983778385.

It is an arithmetic number, because the mean of its divisors is an integer number (6000983778385).

Almost surely, 2^{12001967556769} is an apocalyptic number.

It is an amenable number.

12001967556769 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001967556769 is an equidigital number, since it uses as much as digits as its factorization.

12001967556769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42865200, while the sum is 64.

The spelling of 12001967556769 in words is "twelve trillion, one billion, nine hundred sixty-seven million, five hundred fifty-six thousand, seven hundred sixty-nine".