11617421618 has 8 divisors (see below), whose sum is σ = 19010326320. Its totient is φ = 5280646180.

The previous prime is 11617421587. The next prime is 11617421623. The reversal of 11617421618 is 81612471611.

11617421618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

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, 264032288 + ... + 264032331.

It is an arithmetic number, because the mean of its divisors is an integer number (2376290790).

Almost surely, 2^11617421618 is an apocalyptic number.

11617421618 is a deficient number, since it is larger than the sum of its proper divisors (7392904702).

11617421618 is a wasteful number, since it uses less digits than its factorization.

11617421618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528064632.

The product of its digits is 16128, while the sum is 38.

The spelling of 11617421618 in words is "eleven billion, six hundred seventeen million, four hundred twenty-one thousand, six hundred eighteen".