1268936711744 has 112 divisors (see below), whose sum is σ = 2806042444800. Its totient is φ = 565308205056.

The previous prime is 1268936711639. The next prime is 1268936711753. The reversal of 1268936711744 is 4471176398621.

It is a super-2 number, since 2×1268936711744² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140878889 + ... + 140887895.

It is an arithmetic number, because the mean of its divisors is an integer number (25053950400).

Almost surely, 2^{1268936711744} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268936711744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403021222400).

1268936711744 is an abundant number, since it is smaller than the sum of its proper divisors (1537105733056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1268936711744 is a wasteful number, since it uses less digits than its factorization.

1268936711744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14900 (or 14890 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 59.

The spelling of 1268936711744 in words is "one trillion, two hundred sixty-eight billion, nine hundred thirty-six million, seven hundred eleven thousand, seven hundred forty-four".