11821748832 has 36 divisors (see below), whose sum is σ = 33618099060. Its totient is φ = 3940582848.

The previous prime is 11821748831. The next prime is 11821748849. The reversal of 11821748832 is 23884712811.

11821748832 is a `hidden beast` number, since 118 + 21 + 7 + 488 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11821748831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20523582 + ... + 20524157.

It is an arithmetic number, because the mean of its divisors is an integer number (933836085).

Almost surely, 2^11821748832 is an apocalyptic number.

11821748832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11821748832 is an abundant number, since it is smaller than the sum of its proper divisors (21796350228).

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

11821748832 is a wasteful number, since it uses less digits than its factorization.

11821748832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41047755 (or 41047744 counting only the distinct ones).

The product of its digits is 172032, while the sum is 45.

The spelling of 11821748832 in words is "eleven billion, eight hundred twenty-one million, seven hundred forty-eight thousand, eight hundred thirty-two".