243913159680 has 528 divisors, whose sum is σ = 840302998080. Its totient is φ = 60208054272.

The previous prime is 243913159669. The next prime is 243913159741. The reversal of 243913159680 is 86951319342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2279562187 + ... + 2279562293.

Almost surely, 2^243913159680 is an apocalyptic number.

243913159680 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 243913159680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420151499040).

243913159680 is an abundant number, since it is smaller than the sum of its proper divisors (596389838400).

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

243913159680 is a wasteful number, since it uses less digits than its factorization.

243913159680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 51.

The spelling of 243913159680 in words is "two hundred forty-three billion, nine hundred thirteen million, one hundred fifty-nine thousand, six hundred eighty".