12767365190869 has 2 divisors, whose sum is σ = 12767365190870. Its totient is φ = 12767365190868.

The previous prime is 12767365190863. The next prime is 12767365190897. The reversal of 12767365190869 is 96809156376721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8232807888369 + 4534557302500 = 2869287^2 + 2129450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12767365190869 is a prime.

It is a super-2 number, since 2×12767365190869² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12767365190798 and 12767365190807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12767365190863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6383682595434 + 6383682595435.

It is an arithmetic number, because the mean of its divisors is an integer number (6383682595435).

Almost surely, 2^{12767365190869} is an apocalyptic number.

It is an amenable number.

12767365190869 is a deficient number, since it is larger than the sum of its proper divisors (1).

12767365190869 is an equidigital number, since it uses as much as digits as its factorization.

12767365190869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 205752960, while the sum is 70.

The spelling of 12767365190869 in words is "twelve trillion, seven hundred sixty-seven billion, three hundred sixty-five million, one hundred ninety thousand, eight hundred sixty-nine".