11904008181 has 32 divisors (see below), whose sum is σ = 17285224320. Its totient is φ = 7243603200.

The previous prime is 11904008161. The next prime is 11904008203. The reversal of 11904008181 is 18180040911.

It is not a de Polignac number, because 11904008181 - 2¹⁴ = 11903991797 is a prime.

It is a super-2 number, since 2×11904008181² (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 (11904008111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1258851 + ... + 1268271.

It is an arithmetic number, because the mean of its divisors is an integer number (540163260).

Almost surely, 2^11904008181 is an apocalyptic number.

It is an amenable number.

11904008181 is a deficient number, since it is larger than the sum of its proper divisors (5381216139).

11904008181 is a wasteful number, since it uses less digits than its factorization.

11904008181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9797.

The product of its (nonzero) digits is 2304, while the sum is 33.

The spelling of 11904008181 in words is "eleven billion, nine hundred four million, eight thousand, one hundred eighty-one".