11115798618 has 8 divisors (see below), whose sum is σ = 22231597248. Its totient is φ = 3705266204.

The previous prime is 11115798613. The next prime is 11115798637. The reversal of 11115798618 is 81689751111.

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

11115798618 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11115798611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 926316546 + ... + 926316557.

It is an arithmetic number, because the mean of its divisors is an integer number (2778949656).

Almost surely, 2^11115798618 is an apocalyptic number.

11115798618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11115798618 is a wasteful number, since it uses less digits than its factorization.

11115798618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852633108.

The product of its digits is 120960, while the sum is 48.

The spelling of 11115798618 in words is "eleven billion, one hundred fifteen million, seven hundred ninety-eight thousand, six hundred eighteen".