243911106648 has 192 divisors, whose sum is σ = 730776103200. Its totient is φ = 72878192640.

The previous prime is 243911106641. The next prime is 243911106653. The reversal of 243911106648 is 846601119342.

243911106648 is a `hidden beast` number, since 2 + 439 + 1 + 110 + 66 + 48 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243911106641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26287386 + ... + 26296662.

Almost surely, 2^243911106648 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 243911106648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365388051600).

243911106648 is an abundant number, since it is smaller than the sum of its proper divisors (486864996552).

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

243911106648 is a wasteful number, since it uses less digits than its factorization.

243911106648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9762 (or 9755 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 243911106648 in words is "two hundred forty-three billion, nine hundred eleven million, one hundred six thousand, six hundred forty-eight".