243335365472345 has 8 divisors (see below), whose sum is σ = 309179052600264. Its totient is φ = 183217216355584.

The previous prime is 243335365472323. The next prime is 243335365472387. The reversal of 243335365472345 is 543274563533342.

It can be written as a sum of positive squares in 4 ways, for example, as 17464885168201 + 225870480304144 = 4179101^2 + 15028988^2 .

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 243335365472345 - 2¹⁰ = 243335365471321 is a prime.

It is a super-2 number, since 2×243335365472345² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431384502694 + ... + 1431384502863.

It is an arithmetic number, because the mean of its divisors is an integer number (38647381575033).

Almost surely, 2^{243335365472345} is an apocalyptic number.

It is an amenable number.

243335365472345 is a deficient number, since it is larger than the sum of its proper divisors (65843687127919).

243335365472345 is a wasteful number, since it uses less digits than its factorization.

243335365472345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862769005579.

The product of its digits is 326592000, while the sum is 59.

The spelling of 243335365472345 in words is "two hundred forty-three trillion, three hundred thirty-five billion, three hundred sixty-five million, four hundred seventy-two thousand, three hundred forty-five".