38382022181 has 4 divisors (see below), whose sum is σ = 39274627392. Its totient is φ = 37489416972.

The previous prime is 38382022171. The next prime is 38382022183. The reversal of 38382022181 is 18122028383.

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 not a de Polignac number, because 38382022181 - 2¹⁰ = 38382021157 is a prime.

It is a super-2 number, since 2×38382022181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38382022183) 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, 446302541 + ... + 446302626.

It is an arithmetic number, because the mean of its divisors is an integer number (9818656848).

Almost surely, 2^38382022181 is an apocalyptic number.

It is an amenable number.

38382022181 is a deficient number, since it is larger than the sum of its proper divisors (892605211).

38382022181 is an equidigital number, since it uses as much as digits as its factorization.

38382022181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892605210.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 38382022181 in words is "thirty-eight billion, three hundred eighty-two million, twenty-two thousand, one hundred eighty-one".