243977222059 has 2 divisors, whose sum is σ = 243977222060. Its totient is φ = 243977222058.

The previous prime is 243977221997. The next prime is 243977222063. The reversal of 243977222059 is 950222779342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243977222059 - 2²⁷ = 243843004331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243977221997 and 243977222015.

It is not a weakly prime, because it can be changed into another prime (243977222959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121988611029 + 121988611030.

It is an arithmetic number, because the mean of its divisors is an integer number (121988611030).

Almost surely, 2^243977222059 is an apocalyptic number.

243977222059 is a deficient number, since it is larger than the sum of its proper divisors (1).

243977222059 is an equidigital number, since it uses as much as digits as its factorization.

243977222059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 243977222059 in words is "two hundred forty-three billion, nine hundred seventy-seven million, two hundred twenty-two thousand, fifty-nine".