1268138794274 has 8 divisors (see below), whose sum is σ = 2075136208848. Its totient is φ = 576426724660.

The previous prime is 1268138794267. The next prime is 1268138794283. The reversal of 1268138794274 is 4724978318621.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28821336212 + ... + 28821336255.

It is an arithmetic number, because the mean of its divisors is an integer number (259392026106).

Almost surely, 2^{1268138794274} is an apocalyptic number.

1268138794274 is a deficient number, since it is larger than the sum of its proper divisors (806997414574).

1268138794274 is a wasteful number, since it uses less digits than its factorization.

1268138794274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57642672480.

The product of its digits is 32514048, while the sum is 62.

The spelling of 1268138794274 in words is "one trillion, two hundred sixty-eight billion, one hundred thirty-eight million, seven hundred ninety-four thousand, two hundred seventy-four".