1268161741242 has 24 divisors (see below), whose sum is σ = 2997473207040. Its totient is φ = 384291436680.

The previous prime is 1268161741193. The next prime is 1268161741243. The reversal of 1268161741242 is 2421471618621.

1268161741242 is a `hidden beast` number, since 1 + 2 + 6 + 8 + 1 + 617 + 4 + 1 + 24 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1268161741243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3202428442 + ... + 3202428837.

It is an arithmetic number, because the mean of its divisors is an integer number (124894716960).

Almost surely, 2^{1268161741242} is an apocalyptic number.

1268161741242 is an abundant number, since it is smaller than the sum of its proper divisors (1729311465798).

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

1268161741242 is a wasteful number, since it uses less digits than its factorization.

1268161741242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6404857298 (or 6404857295 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The spelling of 1268161741242 in words is "one trillion, two hundred sixty-eight billion, one hundred sixty-one million, seven hundred forty-one thousand, two hundred forty-two".