2112362839609 has 27 divisors (see below), whose sum is σ = 2386970616303. Its totient is φ = 1867905824400.

The previous prime is 2112362839589. The next prime is 2112362839633. The reversal of 2112362839609 is 9069382632112.

The square root of 2112362839609 is 1453397.

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., 1890171277225 + 222191562384 = 1374835^2 + 471372^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2112362839609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112362839649) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 591530794 + ... + 591534364.

Almost surely, 2^{2112362839609} is an apocalyptic number.

2112362839609 is the 1453397-th square number.

2112362839609 is the 726699-th centered octagonal number.

It is an amenable number.

2112362839609 is a deficient number, since it is larger than the sum of its proper divisors (274607776694).

2112362839609 is an frugal number, since it uses more digits than its factorization.

2112362839609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7238 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 2112362839609 in words is "two trillion, one hundred twelve billion, three hundred sixty-two million, eight hundred thirty-nine thousand, six hundred nine".