243733570728 has 32 divisors (see below), whose sum is σ = 615615725760. Its totient is φ = 80406950400.

The previous prime is 243733570709. The next prime is 243733570747. The reversal of 243733570728 is 827075337342.

It is an interprime number because it is at equal distance from previous prime (243733570709) and next prime (243733570747).

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, 52345948 + ... + 52350603.

It is an arithmetic number, because the mean of its divisors is an integer number (19237991430).

Almost surely, 2^243733570728 is an apocalyptic number.

It is an amenable number.

243733570728 is an abundant number, since it is smaller than the sum of its proper divisors (371882155032).

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

243733570728 is a wasteful number, since it uses less digits than its factorization.

243733570728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104696657 (or 104696653 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 51.

The spelling of 243733570728 in words is "two hundred forty-three billion, seven hundred thirty-three million, five hundred seventy thousand, seven hundred twenty-eight".