243836718450 has 48 divisors (see below), whose sum is σ = 651231610176. Its totient is φ = 60021345600.

The previous prime is 243836718439. The next prime is 243836718451. The reversal of 243836718450 is 54817638342.

It is a happy number.

243836718450 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 243836718393 and 243836718402.

It is not an unprimeable number, because it can be changed into a prime (243836718451) 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 23 ways as a sum of consecutive naturals, for example, 62520286 + ... + 62524185.

It is an arithmetic number, because the mean of its divisors is an integer number (13567325212).

Almost surely, 2^243836718450 is an apocalyptic number.

243836718450 is an abundant number, since it is smaller than the sum of its proper divisors (407394891726).

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

243836718450 is a wasteful number, since it uses less digits than its factorization.

243836718450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125044499 (or 125044494 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 243836718450 in words is "two hundred forty-three billion, eight hundred thirty-six million, seven hundred eighteen thousand, four hundred fifty".