1286745918911 has 2 divisors, whose sum is σ = 1286745918912. Its totient is φ = 1286745918910.

The previous prime is 1286745918863. The next prime is 1286745918949. The reversal of 1286745918911 is 1198195476821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1286745918911 is a prime.

It is a super-2 number, since 2×1286745918911² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286745918611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643372959455 + 643372959456.

It is an arithmetic number, because the mean of its divisors is an integer number (643372959456).

Almost surely, 2^{1286745918911} is an apocalyptic number.

1286745918911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286745918911 is an equidigital number, since it uses as much as digits as its factorization.

1286745918911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 62.

The spelling of 1286745918911 in words is "one trillion, two hundred eighty-six billion, seven hundred forty-five million, nine hundred eighteen thousand, nine hundred eleven".