243552222079 has 2 divisors, whose sum is σ = 243552222080. Its totient is φ = 243552222078.

The previous prime is 243552221951. The next prime is 243552222091. The reversal of 243552222079 is 970222255342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243552222079 - 2⁷ = 243552221951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243552229079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121776111039 + 121776111040.

It is an arithmetic number, because the mean of its divisors is an integer number (121776111040).

Almost surely, 2^243552222079 is an apocalyptic number.

243552222079 is a deficient number, since it is larger than the sum of its proper divisors (1).

243552222079 is an equidigital number, since it uses as much as digits as its factorization.

243552222079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 243552222079 in words is "two hundred forty-three billion, five hundred fifty-two million, two hundred twenty-two thousand, seventy-nine".