1268131318769 has 8 divisors (see below), whose sum is σ = 1449303727680. Its totient is φ = 1086961607856.

The previous prime is 1268131318747. The next prime is 1268131318771. The reversal of 1268131318769 is 9678131318621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1268131318769 - 2⁸ = 1268131318513 is a prime.

It is a super-2 number, since 2×1268131318769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268131318709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459902 + ... + 1657640.

It is an arithmetic number, because the mean of its divisors is an integer number (181162965960).

Almost surely, 2^{1268131318769} is an apocalyptic number.

It is an amenable number.

1268131318769 is a deficient number, since it is larger than the sum of its proper divisors (181172408911).

1268131318769 is a wasteful number, since it uses less digits than its factorization.

1268131318769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348999.

The product of its digits is 2612736, while the sum is 56.

The spelling of 1268131318769 in words is "one trillion, two hundred sixty-eight billion, one hundred thirty-one million, three hundred eighteen thousand, seven hundred sixty-nine".