11808321332438 has 8 divisors (see below), whose sum is σ = 18323257240080. Its totient is φ = 5700568919080.

The previous prime is 11808321332371. The next prime is 11808321332449. The reversal of 11808321332438 is 83423312380811.

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

It is a super-2 number, since 2×11808321332438² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11808321332392 and 11808321332401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101795873498 + ... + 101795873613.

It is an arithmetic number, because the mean of its divisors is an integer number (2290407155010).

Almost surely, 2^{11808321332438} is an apocalyptic number.

11808321332438 is a deficient number, since it is larger than the sum of its proper divisors (6514935907642).

11808321332438 is a wasteful number, since it uses less digits than its factorization.

11808321332438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203591747142.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 11808321332438 in words is "eleven trillion, eight hundred eight billion, three hundred twenty-one million, three hundred thirty-two thousand, four hundred thirty-eight".