243513846463 has 2 divisors, whose sum is σ = 243513846464. Its totient is φ = 243513846462.

The previous prime is 243513846461. The next prime is 243513846467. The reversal of 243513846463 is 364648315342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243513846463 - 2¹ = 243513846461 is a prime.

It is a super-2 number, since 2×243513846463² (a number of 24 digits) contains 22 as substring.

Together with 243513846461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243513846461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121756923231 + 121756923232.

It is an arithmetic number, because the mean of its divisors is an integer number (121756923232).

Almost surely, 2^243513846463 is an apocalyptic number.

243513846463 is a deficient number, since it is larger than the sum of its proper divisors (1).

243513846463 is an equidigital number, since it uses as much as digits as its factorization.

243513846463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4976640, while the sum is 49.

The spelling of 243513846463 in words is "two hundred forty-three billion, five hundred thirteen million, eight hundred forty-six thousand, four hundred sixty-three".