11688636996 has 81 divisors (see below), whose sum is σ = 30428889309. Its totient is φ = 3783125088.

The previous prime is 11688636989. The next prime is 11688637027. The reversal of 11688636996 is 69963688611.

The square root of 11688636996 is 108114.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 10459152900 + 1229484096 = 102270^2 + 35064^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24001065 + ... + 24001551.

Almost surely, 2^11688636996 is an apocalyptic number.

11688636996 is the 108114-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11688636996

11688636996 is an abundant number, since it is smaller than the sum of its proper divisors (18740252313).

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

11688636996 is an equidigital number, since it uses as much as digits as its factorization.

11688636996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058 (or 529 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 11688636996 in words is "eleven billion, six hundred eighty-eight million, six hundred thirty-six thousand, nine hundred ninety-six".