38812173381181 has 4 divisors (see below), whose sum is σ = 39303466715200. Its totient is φ = 38320880047164.

The previous prime is 38812173381167. The next prime is 38812173381193. The reversal of 38812173381181 is 18118337121883.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38812173381181 is a prime.

It is a super-2 number, since 2×38812173381181² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38812173381101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245646666891 + ... + 245646667048.

It is an arithmetic number, because the mean of its divisors is an integer number (9825866678800).

Almost surely, 2^{38812173381181} is an apocalyptic number.

It is an amenable number.

38812173381181 is a deficient number, since it is larger than the sum of its proper divisors (491293334019).

38812173381181 is an equidigital number, since it uses as much as digits as its factorization.

38812173381181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491293334018.

The product of its digits is 1548288, while the sum is 55.

The spelling of 38812173381181 in words is "thirty-eight trillion, eight hundred twelve billion, one hundred seventy-three million, three hundred eighty-one thousand, one hundred eighty-one".