243385979660 has 24 divisors (see below), whose sum is σ = 513304174656. Its totient is φ = 96936560000.

The previous prime is 243385979659. The next prime is 243385979743. The reversal of 243385979660 is 66979583342.

It is a junction number, because it is equal to n+sod(n) for n = 243385979593 and 243385979602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26109716 + ... + 26119035.

It is an arithmetic number, because the mean of its divisors is an integer number (21387673944).

Almost surely, 2^243385979660 is an apocalyptic number.

243385979660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243385979660 is an abundant number, since it is smaller than the sum of its proper divisors (269918194996).

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

243385979660 is a wasteful number, since it uses less digits than its factorization.

243385979660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52228993 (or 52228991 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 62.

The spelling of 243385979660 in words is "two hundred forty-three billion, three hundred eighty-five million, nine hundred seventy-nine thousand, six hundred sixty".