242643064653 has 12 divisors (see below), whose sum is σ = 382346647488. Its totient is φ = 147056402760.

The previous prime is 242643064619. The next prime is 242643064673. The reversal of 242643064653 is 356460346242.

242643064653 is a `hidden beast` number, since 24 + 264 + 306 + 4 + 65 + 3 = 666.

It is not a de Polignac number, because 242643064653 - 2²⁰ = 242642016077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242643064599 and 242643064608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242643064673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1225469925 + ... + 1225470122.

It is an arithmetic number, because the mean of its divisors is an integer number (31862220624).

Almost surely, 2^242643064653 is an apocalyptic number.

It is an amenable number.

242643064653 is a deficient number, since it is larger than the sum of its proper divisors (139703582835).

242643064653 is a wasteful number, since it uses less digits than its factorization.

242643064653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450940064 (or 2450940061 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 45.

The spelling of 242643064653 in words is "two hundred forty-two billion, six hundred forty-three million, sixty-four thousand, six hundred fifty-three".