1838538855522 has 20 divisors (see below), whose sum is σ = 4119688917366. Its totient is φ = 612846285120.

The previous prime is 1838538855493. The next prime is 1838538855523. The reversal of 1838538855522 is 2255588358381.

It is a happy number.

1838538855522 is a `hidden beast` number, since 1 + 8 + 3 + 8 + 53 + 8 + 8 + 55 + 522 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1780487253801 + 58051601721 = 1334349^2 + 240939^2 .

It is a super-3 number, since 3×1838538855522³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1838538855522.

It is not an unprimeable number, because it can be changed into a prime (1838538855523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5674502479 + ... + 5674502802.

Almost surely, 2^{1838538855522} is an apocalyptic number.

1838538855522 is an abundant number, since it is smaller than the sum of its proper divisors (2281150061844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1838538855522 is a wasteful number, since it uses less digits than its factorization.

1838538855522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11349005295 (or 11349005286 counting only the distinct ones).

The product of its digits is 92160000, while the sum is 63.

The spelling of 1838538855522 in words is "one trillion, eight hundred thirty-eight billion, five hundred thirty-eight million, eight hundred fifty-five thousand, five hundred twenty-two".