242662391936564 has 12 divisors (see below), whose sum is σ = 424661285828388. Its totient is φ = 121330595985600.

The previous prime is 242662391936561. The next prime is 242662391936593. The reversal of 242662391936564 is 465639193266242.

It can be written as a sum of positive squares in 2 ways, for example, as 146644107508900 + 96018284427664 = 12109670^2 + 9798892^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242662391936494 and 242662391936503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242662391936561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149085047 + ... + 150703934.

It is an arithmetic number, because the mean of its divisors is an integer number (35388440485699).

Almost surely, 2^{242662391936564} is an apocalyptic number.

It is an amenable number.

242662391936564 is a deficient number, since it is larger than the sum of its proper divisors (181998893891824).

242662391936564 is a wasteful number, since it uses less digits than its factorization.

242662391936564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299991346 (or 299991344 counting only the distinct ones).

The product of its digits is 604661760, while the sum is 68.

The spelling of 242662391936564 in words is "two hundred forty-two trillion, six hundred sixty-two billion, three hundred ninety-one million, nine hundred thirty-six thousand, five hundred sixty-four".