1138841169444 has 120 divisors (see below), whose sum is σ = 3284299418400. Its totient is φ = 341225723520.

The previous prime is 1138841169397. The next prime is 1138841169457. The reversal of 1138841169444 is 4449611488311.

1138841169444 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 84 + 116 + 9 + 444 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1477974 + ... + 2112365.

It is an arithmetic number, because the mean of its divisors is an integer number (27369161820).

Almost surely, 2^{1138841169444} is an apocalyptic number.

It is an amenable number.

1138841169444 is an abundant number, since it is smaller than the sum of its proper divisors (2145458248956).

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

1138841169444 is a wasteful number, since it uses less digits than its factorization.

1138841169444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3590455 (or 3590444 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 1138841169444 in words is "one trillion, one hundred thirty-eight billion, eight hundred forty-one million, one hundred sixty-nine thousand, four hundred forty-four".