11688140592 has 120 divisors (see below), whose sum is σ = 34132023744. Its totient is φ = 3871934784.

The previous prime is 11688140591. The next prime is 11688140603. The reversal of 11688140592 is 29504188611.

It is a happy number.

11688140592 is a `hidden beast` number, since 1 + 16 + 8 + 8 + 1 + 40 + 592 = 666.

It is a super-2 number, since 2×11688140592² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11688140591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 624523 + ... + 642965.

Almost surely, 2^11688140592 is an apocalyptic number.

11688140592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11688140592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17066011872).

11688140592 is an abundant number, since it is smaller than the sum of its proper divisors (22443883152).

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

11688140592 is a wasteful number, since it uses less digits than its factorization.

11688140592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18629 (or 18611 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 11688140592 in words is "eleven billion, six hundred eighty-eight million, one hundred forty thousand, five hundred ninety-two".