243245730552 has 64 divisors (see below), whose sum is σ = 663447715200. Its totient is φ = 73705242240.

The previous prime is 243245730523. The next prime is 243245730571. The reversal of 243245730552 is 255037542342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4638543 + ... + 4690689.

It is an arithmetic number, because the mean of its divisors is an integer number (10366370550).

Almost surely, 2^243245730552 is an apocalyptic number.

243245730552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243245730552 is an abundant number, since it is smaller than the sum of its proper divisors (420201984648).

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

243245730552 is a wasteful number, since it uses less digits than its factorization.

243245730552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69836 (or 69832 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 42.

The spelling of 243245730552 in words is "two hundred forty-three billion, two hundred forty-five million, seven hundred thirty thousand, five hundred fifty-two".