38822135118581 has 4 divisors (see below), whose sum is σ = 40865405388000. Its totient is φ = 36778864849164.

The previous prime is 38822135118563. The next prime is 38822135118601. The reversal of 38822135118581 is 18581153122883.

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 38822135118581 - 2¹⁴ = 38822135102197 is a prime.

It is a super-2 number, since 2×38822135118581² (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 (38822135138581) 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, 1021635134681 + ... + 1021635134718.

It is an arithmetic number, because the mean of its divisors is an integer number (10216351347000).

Almost surely, 2^{38822135118581} is an apocalyptic number.

It is an amenable number.

38822135118581 is a deficient number, since it is larger than the sum of its proper divisors (2043270269419).

38822135118581 is a wasteful number, since it uses less digits than its factorization.

38822135118581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043270269418.

The product of its digits is 3686400, while the sum is 56.

The spelling of 38822135118581 in words is "thirty-eight trillion, eight hundred twenty-two billion, one hundred thirty-five million, one hundred eighteen thousand, five hundred eighty-one".