243923346912 has 192 divisors, whose sum is σ = 758951424000. Its totient is φ = 68549322240.

The previous prime is 243923346899. The next prime is 243923346917. The reversal of 243923346912 is 219643329342.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243923346917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1947889 + ... + 2069327.

It is an arithmetic number, because the mean of its divisors is an integer number (3952872000).

Almost surely, 2^243923346912 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 243923346912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379475712000).

243923346912 is an abundant number, since it is smaller than the sum of its proper divisors (515028077088).

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

243923346912 is a wasteful number, since it uses less digits than its factorization.

243923346912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121534 (or 121512 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 48.

The spelling of 243923346912 in words is "two hundred forty-three billion, nine hundred twenty-three million, three hundred forty-six thousand, nine hundred twelve".