11853223452 has 120 divisors (see below), whose sum is σ = 35898949856. Its totient is φ = 3340196352.

The previous prime is 11853223441. The next prime is 11853223453. The reversal of 11853223452 is 25432235811.

11853223452 is a `hidden beast` number, since 1 + 185 + 3 + 2 + 23 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11853223453) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 129768 + ... + 201360.

Almost surely, 2^11853223452 is an apocalyptic number.

11853223452 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 11853223452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17949474928).

11853223452 is an abundant number, since it is smaller than the sum of its proper divisors (24045726404).

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

11853223452 is a wasteful number, since it uses less digits than its factorization.

11853223452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71689 (or 71678 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 11853223452 in words is "eleven billion, eight hundred fifty-three million, two hundred twenty-three thousand, four hundred fifty-two".