243433236464 has 60 divisors (see below), whose sum is σ = 519677962440. Its totient is φ = 109555104000.

The previous prime is 243433236463. The next prime is 243433236469. The reversal of 243433236464 is 464632334342.

243433236464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243433236463) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1727582 + ... + 1863170.

It is an arithmetic number, because the mean of its divisors is an integer number (8661299374).

Almost surely, 2^243433236464 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 243433236464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259838981220).

243433236464 is an abundant number, since it is smaller than the sum of its proper divisors (276244725976).

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

243433236464 is a wasteful number, since it uses less digits than its factorization.

243433236464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135810 (or 135703 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 44.

The spelling of 243433236464 in words is "two hundred forty-three billion, four hundred thirty-three million, two hundred thirty-six thousand, four hundred sixty-four".