1268711388884 has 12 divisors (see below), whose sum is σ = 2221194175200. Its totient is φ = 634084481688.

The previous prime is 1268711388877. The next prime is 1268711388887. The reversal of 1268711388884 is 4888831178621.

It is a self number, because there is not a number n which added to its sum of digits gives 1268711388884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268711388887) 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, 67792664 + ... + 67811375.

It is an arithmetic number, because the mean of its divisors is an integer number (185099514600).

Almost surely, 2^{1268711388884} is an apocalyptic number.

It is an amenable number.

1268711388884 is a deficient number, since it is larger than the sum of its proper divisors (952482786316).

1268711388884 is a wasteful number, since it uses less digits than its factorization.

1268711388884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135606382 (or 135606380 counting only the distinct ones).

The product of its digits is 33030144, while the sum is 65.

The spelling of 1268711388884 in words is "one trillion, two hundred sixty-eight billion, seven hundred eleven million, three hundred eighty-eight thousand, eight hundred eighty-four".