242564353945 has 8 divisors (see below), whose sum is σ = 292931220744. Its totient is φ = 192815485824.

The previous prime is 242564353909. The next prime is 242564353951. The reversal of 242564353945 is 549353465242.

It can be written as a sum of positive squares in 4 ways, for example, as 44297199961 + 198267153984 = 210469^2 + 445272^2 .

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 242564353945 - 2²⁷ = 242430136217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242564353892 and 242564353901.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 154498804 + ... + 154500373.

It is an arithmetic number, because the mean of its divisors is an integer number (36616402593).

Almost surely, 2^242564353945 is an apocalyptic number.

It is an amenable number.

242564353945 is a deficient number, since it is larger than the sum of its proper divisors (50366866799).

242564353945 is a wasteful number, since it uses less digits than its factorization.

242564353945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308999339.

The product of its digits is 15552000, while the sum is 52.

The spelling of 242564353945 in words is "two hundred forty-two billion, five hundred sixty-four million, three hundred fifty-three thousand, nine hundred forty-five".