1286631094871 has 2 divisors, whose sum is σ = 1286631094872. Its totient is φ = 1286631094870.

The previous prime is 1286631094849. The next prime is 1286631094883. The reversal of 1286631094871 is 1784901366821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1286631094871 - 2¹⁴ = 1286631078487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1286631094271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 643315547435 + 643315547436.

It is an arithmetic number, because the mean of its divisors is an integer number (643315547436).

Almost surely, 2^{1286631094871} is an apocalyptic number.

1286631094871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1286631094871 is an equidigital number, since it uses as much as digits as its factorization.

1286631094871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 1286631094871 in words is "one trillion, two hundred eighty-six billion, six hundred thirty-one million, ninety-four thousand, eight hundred seventy-one".