243650052643 has 2 divisors, whose sum is σ = 243650052644. Its totient is φ = 243650052642.

The previous prime is 243650052623. The next prime is 243650052713. The reversal of 243650052643 is 346250056342.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243650052643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243650052596 and 243650052605.

It is not a weakly prime, because it can be changed into another prime (243650052623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121825026321 + 121825026322.

It is an arithmetic number, because the mean of its divisors is an integer number (121825026322).

Almost surely, 2^243650052643 is an apocalyptic number.

243650052643 is a deficient number, since it is larger than the sum of its proper divisors (1).

243650052643 is an equidigital number, since it uses as much as digits as its factorization.

243650052643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 40.

The spelling of 243650052643 in words is "two hundred forty-three billion, six hundred fifty million, fifty-two thousand, six hundred forty-three".