1838545638404 has 24 divisors (see below), whose sum is σ = 3387222632640. Its totient is φ = 870779973024.

The previous prime is 1838545638367. The next prime is 1838545638409. The reversal of 1838545638404 is 4048365458381.

It is not an unprimeable number, because it can be changed into a prime (1838545638409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921824 + ... + 2127639.

It is an arithmetic number, because the mean of its divisors is an integer number (141134276360).

Almost surely, 2^{1838545638404} is an apocalyptic number.

It is an amenable number.

1838545638404 is a deficient number, since it is larger than the sum of its proper divisors (1548676994236).

1838545638404 is a wasteful number, since it uses less digits than its factorization.

1838545638404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057419 (or 3057417 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 59.

The spelling of 1838545638404 in words is "one trillion, eight hundred thirty-eight billion, five hundred forty-five million, six hundred thirty-eight thousand, four hundred four".