243738177001741 has 2 divisors, whose sum is σ = 243738177001742. Its totient is φ = 243738177001740.

The previous prime is 243738177001699. The next prime is 243738177001799. The reversal of 243738177001741 is 147100771837342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130431817455625 + 113306359546116 = 11420675^2 + 10644546^2 .

It is a cyclic number.

It is not a de Polignac number, because 243738177001741 - 2³³ = 243729587067149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243738177001841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121869088500870 + 121869088500871.

It is an arithmetic number, because the mean of its divisors is an integer number (121869088500871).

Almost surely, 2^{243738177001741} is an apocalyptic number.

It is an amenable number.

243738177001741 is a deficient number, since it is larger than the sum of its proper divisors (1).

243738177001741 is an equidigital number, since it uses as much as digits as its factorization.

243738177001741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5531904, while the sum is 55.

The spelling of 243738177001741 in words is "two hundred forty-three trillion, seven hundred thirty-eight billion, one hundred seventy-seven million, one thousand, seven hundred forty-one".