1177885316018 has 4 divisors (see below), whose sum is σ = 1766827974030. Its totient is φ = 588942658008.

The previous prime is 1177885315987. The next prime is 1177885316021. The reversal of 1177885316018 is 8106135887711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 925034233369 + 252851082649 = 961787^2 + 502843^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 294471329003 + ... + 294471329006.

Almost surely, 2^{1177885316018} is an apocalyptic number.

1177885316018 is a deficient number, since it is larger than the sum of its proper divisors (588942658012).

1177885316018 is an equidigital number, since it uses as much as digits as its factorization.

1177885316018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588942658011.

The product of its (nonzero) digits is 2257920, while the sum is 56.

The spelling of 1177885316018 in words is "one trillion, one hundred seventy-seven billion, eight hundred eighty-five million, three hundred sixteen thousand, eighteen".