1268180534018 has 8 divisors (see below), whose sum is σ = 1967866345980. Its totient is φ = 612225085360.

The previous prime is 1268180534009. The next prime is 1268180534021. The reversal of 1268180534018 is 8104350818621.

It can be written as a sum of positive squares in 2 ways, for example, as 1221150973249 + 47029560769 = 1105057^2 + 216863^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10932590753 + ... + 10932590868.

Almost surely, 2^{1268180534018} is an apocalyptic number.

1268180534018 is a deficient number, since it is larger than the sum of its proper divisors (699685811962).

1268180534018 is a wasteful number, since it uses less digits than its factorization.

1268180534018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21865181652.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 1268180534018 in words is "one trillion, two hundred sixty-eight billion, one hundred eighty million, five hundred thirty-four thousand, eighteen".