243005327171742 has 16 divisors (see below), whose sum is σ = 486022156155792. Its totient is φ = 80999858755200.

The previous prime is 243005327171699. The next prime is 243005327171743. The reversal of 243005327171742 is 247171723500342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243005327171691 and 243005327171700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243005327171743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478967509 + ... + 479474592.

It is an arithmetic number, because the mean of its divisors is an integer number (30376384759737).

Almost surely, 2^{243005327171742} is an apocalyptic number.

243005327171742 is an abundant number, since it is smaller than the sum of its proper divisors (243016828984050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243005327171742 is a wasteful number, since it uses less digits than its factorization.

243005327171742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958484363.

The product of its (nonzero) digits is 1975680, while the sum is 48.

The spelling of 243005327171742 in words is "two hundred forty-three trillion, five billion, three hundred twenty-seven million, one hundred seventy-one thousand, seven hundred forty-two".