11689042112 has 56 divisors (see below), whose sum is σ = 25334000640. Its totient is φ = 5306927360.

The previous prime is 11689042111. The next prime is 11689042159. The reversal of 11689042112 is 21124098611.

It is a super-2 number, since 2×11689042112² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11689042111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615089 + ... + 633807.

Almost surely, 2^11689042112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11689042112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12667000320).

11689042112 is an abundant number, since it is smaller than the sum of its proper divisors (13644958528).

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

11689042112 is a wasteful number, since it uses less digits than its factorization.

11689042112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19629 (or 19619 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 11689042112 in words is "eleven billion, six hundred eighty-nine million, forty-two thousand, one hundred twelve".