11685236472 has 512 divisors, whose sum is σ = 41838182400. Its totient is φ = 2939328000.

The previous prime is 11685236401. The next prime is 11685236473. The reversal of 11685236472 is 27463258611.

11685236472 is a `hidden beast` number, since 1 + 1 + 68 + 523 + 64 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11685236473) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 77385597 + ... + 77385747.

It is an arithmetic number, because the mean of its divisors is an integer number (81715200).

Almost surely, 2^11685236472 is an apocalyptic number.

11685236472 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 11685236472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20919091200).

11685236472 is an abundant number, since it is smaller than the sum of its proper divisors (30152945928).

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

11685236472 is a wasteful number, since it uses less digits than its factorization.

11685236472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 334 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 11685236472 in words is "eleven billion, six hundred eighty-five million, two hundred thirty-six thousand, four hundred seventy-two".