243269091072 has 270 divisors, whose sum is σ = 843818044608. Its totient is φ = 69505164288.

The previous prime is 243269091017. The next prime is 243269091083. The reversal of 243269091072 is 270190962342.

243269091072 is a `hidden beast` number, since 2 + 432 + 69 + 0 + 91 + 0 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 896353 + ... + 1135775.

Almost surely, 2^243269091072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243269091072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421909022304).

243269091072 is an abundant number, since it is smaller than the sum of its proper divisors (600548953536).

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

243269091072 is an equidigital number, since it uses as much as digits as its factorization.

243269091072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239465 (or 239435 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 243269091072 in words is "two hundred forty-three billion, two hundred sixty-nine million, ninety-one thousand, seventy-two".