2119388579344 has 135 divisors (see below), whose sum is σ = 4434349771341. Its totient is φ = 981100823040.

The previous prime is 2119388579317. The next prime is 2119388579353. The reversal of 2119388579344 is 4439758839112.

The square root of 2119388579344 is 1455812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1650043011600 + 469345567744 = 1284540^2 + 685088^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7820621929 + ... + 7820622199.

Almost surely, 2^{2119388579344} is an apocalyptic number.

2119388579344 is the 1455812-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2119388579344

2119388579344 is an abundant number, since it is smaller than the sum of its proper divisors (2314961191997).

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

2119388579344 is an frugal number, since it uses more digits than its factorization.

2119388579344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742 (or 369 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

Multiplying 2119388579344 by its sum of digits (64), we get a square (135640869078016 = 11646496²).

The spelling of 2119388579344 in words is "two trillion, one hundred nineteen billion, three hundred eighty-eight million, five hundred seventy-nine thousand, three hundred forty-four".