243026218543836 has 192 divisors, whose sum is σ = 699925449646080. Its totient is φ = 63910864684800.

The previous prime is 243026218543819. The next prime is 243026218543837. The reversal of 243026218543836 is 638345812620342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243026218543837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1842060505 + ... + 1842192431.

It is an arithmetic number, because the mean of its divisors is an integer number (3645445050240).

Almost surely, 2^{243026218543836} is an apocalyptic number.

243026218543836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243026218543836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349962724823040).

243026218543836 is an abundant number, since it is smaller than the sum of its proper divisors (456899231102244).

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

243026218543836 is a wasteful number, since it uses less digits than its factorization.

243026218543836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136784 (or 136782 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 57.

The spelling of 243026218543836 in words is "two hundred forty-three trillion, twenty-six billion, two hundred eighteen million, five hundred forty-three thousand, eight hundred thirty-six".