2208989595289 has 3 divisors (see below), whose sum is σ = 2208991081557. Its totient is φ = 2208988109022.

The previous prime is 2208989595277. The next prime is 2208989595313. The reversal of 2208989595289 is 9825959898022.

The square root of 2208989595289 is 1486267.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2208989595289 - 2⁷ = 2208989595161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2208989595209) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 743134 + ... + 2229400.

It is an arithmetic number, because the mean of its divisors is an integer number (736330360519).

Almost surely, 2^{2208989595289} is an apocalyptic number.

2208989595289 is the 1486267-th square number.

2208989595289 is the 743134-th centered octagonal number.

It is an amenable number.

2208989595289 is a deficient number, since it is larger than the sum of its proper divisors (1486268).

2208989595289 is an frugal number, since it uses more digits than its factorization.

2208989595289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972534 (or 1486267 counting only the distinct ones).

The product of its (nonzero) digits is 671846400, while the sum is 76.

The spelling of 2208989595289 in words is "two trillion, two hundred eight billion, nine hundred eighty-nine million, five hundred ninety-five thousand, two hundred eighty-nine".