1838401820204 has 12 divisors (see below), whose sum is σ = 3217433100000. Its totient is φ = 919135220208.

The previous prime is 1838401820191. The next prime is 1838401820207. The reversal of 1838401820204 is 4020281048381.

It is not an unprimeable number, because it can be changed into a prime (1838401820207) 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 3 ways as a sum of consecutive naturals, for example, 16359479 + ... + 16471470.

It is an arithmetic number, because the mean of its divisors is an integer number (268119425000).

Almost surely, 2^{1838401820204} is an apocalyptic number.

It is an amenable number.

1838401820204 is a deficient number, since it is larger than the sum of its proper divisors (1379031279796).

1838401820204 is a wasteful number, since it uses less digits than its factorization.

1838401820204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32844952 (or 32844950 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

Adding to 1838401820204 its reverse (4020281048381), we get a palindrome (5858682868585).

The spelling of 1838401820204 in words is "one trillion, eight hundred thirty-eight billion, four hundred one million, eight hundred twenty thousand, two hundred four".