243083969136 has 480 divisors, whose sum is σ = 770356694016. Its totient is φ = 73903104000.

The previous prime is 243083969059. The next prime is 243083969171. The reversal of 243083969136 is 631969380342.

243083969136 is a `hidden beast` number, since 2 + 430 + 8 + 3 + 96 + 91 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 95 ways as a sum of consecutive naturals, for example, 734392491 + ... + 734392821.

Almost surely, 2^243083969136 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 243083969136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385178347008).

243083969136 is an abundant number, since it is smaller than the sum of its proper divisors (527272724880).

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

243083969136 is a wasteful number, since it uses less digits than its factorization.

243083969136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 54.

The spelling of 243083969136 in words is "two hundred forty-three billion, eighty-three million, nine hundred sixty-nine thousand, one hundred thirty-six".