243264217363 has 2 divisors, whose sum is σ = 243264217364. Its totient is φ = 243264217362.

The previous prime is 243264217351. The next prime is 243264217373. The reversal of 243264217363 is 363712462342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243264217363 - 2¹⁷ = 243264086291 is a prime.

It is not a weakly prime, because it can be changed into another prime (243264217373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121632108681 + 121632108682.

It is an arithmetic number, because the mean of its divisors is an integer number (121632108682).

Almost surely, 2^243264217363 is an apocalyptic number.

243264217363 is a deficient number, since it is larger than the sum of its proper divisors (1).

243264217363 is an equidigital number, since it uses as much as digits as its factorization.

243264217363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 43.

The spelling of 243264217363 in words is "two hundred forty-three billion, two hundred sixty-four million, two hundred seventeen thousand, three hundred sixty-three".