11989395792 has 400 divisors, whose sum is σ = 40789514304. Its totient is φ = 3359232000.

The previous prime is 11989395779. The next prime is 11989395799. The reversal of 11989395792 is 29759398911.

11989395792 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11989395792² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11989395799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 14783067 + ... + 14783877.

Almost surely, 2^11989395792 is an apocalyptic number.

11989395792 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 11989395792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20394757152).

11989395792 is an abundant number, since it is smaller than the sum of its proper divisors (28800118512).

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

11989395792 is a wasteful number, since it uses less digits than its factorization.

11989395792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 905 counting only the distinct ones).

The product of its digits is 11022480, while the sum is 63.

The spelling of 11989395792 in words is "eleven billion, nine hundred eighty-nine million, three hundred ninety-five thousand, seven hundred ninety-two".