1118750449618 has 4 divisors (see below), whose sum is σ = 1678125674430. Its totient is φ = 559375224808.

The previous prime is 1118750449613. The next prime is 1118750449639. The reversal of 1118750449618 is 8169440578111.

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., 924668790409 + 194081659209 = 961597^2 + 440547^2 .

It is not an unprimeable number, because it can be changed into a prime (1118750449613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279687612403 + ... + 279687612406.

Almost surely, 2^{1118750449618} is an apocalyptic number.

1118750449618 is a deficient number, since it is larger than the sum of its proper divisors (559375224812).

1118750449618 is an equidigital number, since it uses as much as digits as its factorization.

1118750449618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559375224811.

The product of its (nonzero) digits is 1935360, while the sum is 55.

The spelling of 1118750449618 in words is "one trillion, one hundred eighteen billion, seven hundred fifty million, four hundred forty-nine thousand, six hundred eighteen".