11889423530 has 16 divisors (see below), whose sum is σ = 21402593280. Its totient is φ = 4755406992.

The previous prime is 11889423523. The next prime is 11889423547. The reversal of 11889423530 is 3532498811.

It is a Curzon 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, 121847 + ... + 196533.

It is an arithmetic number, because the mean of its divisors is an integer number (1337662080).

Almost surely, 2^11889423530 is an apocalyptic number.

11889423530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11889423530 is a deficient number, since it is larger than the sum of its proper divisors (9513169750).

11889423530 is a wasteful number, since it uses less digits than its factorization.

11889423530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90613.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 11889423530 in words is "eleven billion, eight hundred eighty-nine million, four hundred twenty-three thousand, five hundred thirty".