11380812618 has 24 divisors (see below), whose sum is σ = 26477809632. Its totient is φ = 3251660664.

The previous prime is 11380812593. The next prime is 11380812631. The reversal of 11380812618 is 81621808311.

11380812618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 19354830 + ... + 19355417.

It is an arithmetic number, because the mean of its divisors is an integer number (1103242068).

Almost surely, 2^11380812618 is an apocalyptic number.

11380812618 is an abundant number, since it is smaller than the sum of its proper divisors (15096997014).

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

11380812618 is a wasteful number, since it uses less digits than its factorization.

11380812618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38710266 (or 38710259 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 39.

The spelling of 11380812618 in words is "eleven billion, three hundred eighty million, eight hundred twelve thousand, six hundred eighteen".