242706715205 has 18 divisors (see below), whose sum is σ = 296918414646. Its totient is φ = 190456047808.

The previous prime is 242706715193. The next prime is 242706715211. The reversal of 242706715205 is 502517607242.

It can be written as a sum of positive squares in 9 ways, for example, as 18484577764 + 224222137441 = 135958^2 + 473521^2 .

It is not a de Polignac number, because 242706715205 - 2⁴ = 242706715189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58382987 + ... + 58387143.

Almost surely, 2^242706715205 is an apocalyptic number.

It is an amenable number.

242706715205 is a deficient number, since it is larger than the sum of its proper divisors (54211699441).

242706715205 is an frugal number, since it uses more digits than its factorization.

242706715205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425 (or 4215 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 242706715205 in words is "two hundred forty-two billion, seven hundred six million, seven hundred fifteen thousand, two hundred five".