2123382295489 has 81 divisors (see below), whose sum is σ = 2726601617187. Its totient is φ = 1648039000608.

The previous prime is 2123382295481. The next prime is 2123382295543. The reversal of 2123382295489 is 9845922833212.

The square root of 2123382295489 is 1457183.

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., 314109807025 + 1809272488464 = 560455^2 + 1345092^2 .

It is not a de Polignac number, because 2123382295489 - 2³ = 2123382295481 is a prime.

It is a super-2 number, since 2×2123382295489² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123382295481) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 8884444632 + ... + 8884444870.

Almost surely, 2^{2123382295489} is an apocalyptic number.

2123382295489 is the 1457183-rd square number.

2123382295489 is the 728592-nd centered octagonal number.

It is an amenable number.

2123382295489 is a deficient number, since it is larger than the sum of its proper divisors (603219321698).

2123382295489 is an frugal number, since it uses more digits than its factorization.

2123382295489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652 (or 326 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 58.

The spelling of 2123382295489 in words is "two trillion, one hundred twenty-three billion, three hundred eighty-two million, two hundred ninety-five thousand, four hundred eighty-nine".