1138844338912 has 48 divisors (see below), whose sum is σ = 2591190816480. Its totient is φ = 482592135168.

The previous prime is 1138844338883. The next prime is 1138844338969. The reversal of 1138844338912 is 2198334488311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28542573 + ... + 28582444.

It is an arithmetic number, because the mean of its divisors is an integer number (53983142010).

Almost surely, 2^{1138844338912} is an apocalyptic number.

It is an amenable number.

1138844338912 is an abundant number, since it is smaller than the sum of its proper divisors (1452346477568).

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

1138844338912 is an equidigital number, since it uses as much as digits as its factorization.

1138844338912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57125123 (or 57125115 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The spelling of 1138844338912 in words is "one trillion, one hundred thirty-eight billion, eight hundred forty-four million, three hundred thirty-eight thousand, nine hundred twelve".