11818568830 has 16 divisors (see below), whose sum is σ = 21622169664. Its totient is φ = 4649928480.

The previous prime is 11818568821. The next prime is 11818568843. The reversal of 11818568830 is 3886581811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9686742 + ... + 9687961.

It is an arithmetic number, because the mean of its divisors is an integer number (1351385604).

Almost surely, 2^11818568830 is an apocalyptic number.

11818568830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11818568830 is a deficient number, since it is larger than the sum of its proper divisors (9803600834).

11818568830 is a wasteful number, since it uses less digits than its factorization.

11818568830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19374771.

The product of its (nonzero) digits is 368640, while the sum is 49.

The spelling of 11818568830 in words is "eleven billion, eight hundred eighteen million, five hundred sixty-eight thousand, eight hundred thirty".