242242005261 has 8 divisors (see below), whose sum is σ = 323018915904. Its totient is φ = 161479882400.

The previous prime is 242242005191. The next prime is 242242005311. The reversal of 242242005261 is 162500242242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242242005261 - 2⁷ = 242242005133 is a prime.

It is a super-2 number, since 2×242242005261² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242242006261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3658665 + ... + 3724286.

It is an arithmetic number, because the mean of its divisors is an integer number (40377364488).

Almost surely, 2^242242005261 is an apocalyptic number.

It is an amenable number.

242242005261 is a deficient number, since it is larger than the sum of its proper divisors (80776910643).

242242005261 is a wasteful number, since it uses less digits than its factorization.

242242005261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393891.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 242242005261 in words is "two hundred forty-two billion, two hundred forty-two million, five thousand, two hundred sixty-one".