11812679618 has 8 divisors (see below), whose sum is σ = 18489411648. Its totient is φ = 5649542404.

The previous prime is 11812679581. The next prime is 11812679633. The reversal of 11812679618 is 81697621811.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128398646 + ... + 128398737.

It is an arithmetic number, because the mean of its divisors is an integer number (2311176456).

Almost surely, 2^11812679618 is an apocalyptic number.

11812679618 is a deficient number, since it is larger than the sum of its proper divisors (6676732030).

11812679618 is a wasteful number, since it uses less digits than its factorization.

11812679618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256797408.

The product of its digits is 290304, while the sum is 50.

The spelling of 11812679618 in words is "eleven billion, eight hundred twelve million, six hundred seventy-nine thousand, six hundred eighteen".