243420200479 has 2 divisors, whose sum is σ = 243420200480. Its totient is φ = 243420200478.

The previous prime is 243420200411. The next prime is 243420200483. The reversal of 243420200479 is 974002024342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243420200479 - 2⁷ = 243420200351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243420206479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121710100239 + 121710100240.

It is an arithmetic number, because the mean of its divisors is an integer number (121710100240).

Almost surely, 2^243420200479 is an apocalyptic number.

243420200479 is a deficient number, since it is larger than the sum of its proper divisors (1).

243420200479 is an equidigital number, since it uses as much as digits as its factorization.

243420200479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 243420200479 in words is "two hundred forty-three billion, four hundred twenty million, two hundred thousand, four hundred seventy-nine".