243005740764 has 24 divisors (see below), whose sum is σ = 567022513680. Its totient is φ = 81000610944.

The previous prime is 243005740727. The next prime is 243005740807. The reversal of 243005740764 is 467047500342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883282 + ... + 1125254.

It is an arithmetic number, because the mean of its divisors is an integer number (23625938070).

Almost surely, 2^243005740764 is an apocalyptic number.

It is an amenable number.

243005740764 is an abundant number, since it is smaller than the sum of its proper divisors (324016772916).

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

243005740764 is a wasteful number, since it uses less digits than its factorization.

243005740764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325669 (or 325667 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 42.

The spelling of 243005740764 in words is "two hundred forty-three billion, five million, seven hundred forty thousand, seven hundred sixty-four".