243077180208 has 80 divisors (see below), whose sum is σ = 635620924800. Its totient is φ = 80037619200.

The previous prime is 243077180131. The next prime is 243077180209. The reversal of 243077180208 is 802081770342.

It is a self number, because there is not a number n which added to its sum of digits gives 243077180208.

It is not an unprimeable number, because it can be changed into a prime (243077180209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4462803 + ... + 4516941.

It is an arithmetic number, because the mean of its divisors is an integer number (7945261560).

Almost surely, 2^243077180208 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 243077180208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317810462400).

243077180208 is an abundant number, since it is smaller than the sum of its proper divisors (392543744592).

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

243077180208 is a wasteful number, since it uses less digits than its factorization.

243077180208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55290 (or 55284 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 243077180208 in words is "two hundred forty-three billion, seventy-seven million, one hundred eighty thousand, two hundred eight".