11804782081 has 8 divisors (see below), whose sum is σ = 11855531520. Its totient is φ = 11754142368.

The previous prime is 11804782057. The next prime is 11804782103. The reversal of 11804782081 is 18028740811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11804782081 - 2⁵ = 11804782049 is a prime.

It is a super-2 number, since 2×11804782081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11804782681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191940 + ... + 245866.

It is an arithmetic number, because the mean of its divisors is an integer number (1481941440).

Almost surely, 2^11804782081 is an apocalyptic number.

It is an amenable number.

11804782081 is a deficient number, since it is larger than the sum of its proper divisors (50749439).

11804782081 is an equidigital number, since it uses as much as digits as its factorization.

11804782081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54863.

The product of its (nonzero) digits is 28672, while the sum is 40.

The spelling of 11804782081 in words is "eleven billion, eight hundred four million, seven hundred eighty-two thousand, eighty-one".