239948867420089 has 27 divisors (see below), whose sum is σ = 245792373636901. Its totient is φ = 234243439914680.

The previous prime is 239948867420083. The next prime is 239948867420099. The reversal of 239948867420089 is 980024768849932.

The square root of 239948867420089 is 15490283.

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

It is not a de Polignac number, because 239948867420089 - 2¹⁵ = 239948867387321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239948867420083) 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, 117679678932 + ... + 117679680970.

Almost surely, 2^{239948867420089} is an apocalyptic number.

239948867420089 is the 15490283-rd square number.

239948867420089 is the 7745142-nd centered octagonal number.

It is an amenable number.

239948867420089 is a deficient number, since it is larger than the sum of its proper divisors (5843506216812).

239948867420089 is an frugal number, since it uses more digits than its factorization.

239948867420089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434 (or 2217 counting only the distinct ones).

The product of its (nonzero) digits is 3009871872, while the sum is 79.

The spelling of 239948867420089 in words is "two hundred thirty-nine trillion, nine hundred forty-eight billion, eight hundred sixty-seven million, four hundred twenty thousand, eighty-nine".