243090650880 has 1152 divisors, whose sum is σ = 1083909980160. Its totient is φ = 50118082560.

The previous prime is 243090650863. The next prime is 243090650903. The reversal of 243090650880 is 88056090342.

243090650880 is a `hidden beast` number, since 2 + 430 + 90 + 6 + 50 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 444406767 + ... + 444407313.

It is an arithmetic number, because the mean of its divisors is an integer number (940894080).

Almost surely, 2^243090650880 is an apocalyptic number.

243090650880 is a gapful number since it is divisible by the number (20) 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 243090650880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541954990080).

243090650880 is an abundant number, since it is smaller than the sum of its proper divisors (840819329280).

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

243090650880 is a wasteful number, since it uses less digits than its factorization.

243090650880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 243090650880 in words is "two hundred forty-three billion, ninety million, six hundred fifty thousand, eight hundred eighty".