1286291866996 has 12 divisors (see below), whose sum is σ = 2265348416548. Its totient is φ = 639049462272.

The previous prime is 1286291866967. The next prime is 1286291866999. The reversal of 1286291866996 is 6996681926821.

It can be written as a sum of positive squares in 2 ways, for example, as 745052090896 + 541239776100 = 863164^2 + 735690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286291866999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024117101 + ... + 1024118356.

Almost surely, 2^{1286291866996} is an apocalyptic number.

It is an amenable number.

1286291866996 is a deficient number, since it is larger than the sum of its proper divisors (979056549552).

1286291866996 is a wasteful number, since it uses less digits than its factorization.

1286291866996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048235618 (or 2048235616 counting only the distinct ones).

The product of its digits is 241864704, while the sum is 73.

The spelling of 1286291866996 in words is "one trillion, two hundred eighty-six billion, two hundred ninety-one million, eight hundred sixty-six thousand, nine hundred ninety-six".