243005740765 has 16 divisors (see below), whose sum is σ = 295353031680. Its totient is φ = 191908080000.

The previous prime is 243005740727. The next prime is 243005740807. The reversal of 243005740765 is 567047500342.

243005740765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243005740765 - 2¹⁹ = 243005216477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2180140 + ... + 2288890.

It is an arithmetic number, because the mean of its divisors is an integer number (18459564480).

Almost surely, 2^243005740765 is an apocalyptic number.

It is an amenable number.

243005740765 is a deficient number, since it is larger than the sum of its proper divisors (52347290915).

243005740765 is a wasteful number, since it uses less digits than its factorization.

243005740765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114492.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 243005740765 in words is "two hundred forty-three billion, five million, seven hundred forty thousand, seven hundred sixty-five".