243474221605608 has 384 divisors, whose sum is σ = 828734153195520. Its totient is φ = 62971334461440.

The previous prime is 243474221605567. The next prime is 243474221605631. The reversal of 243474221605608 is 806506122474342.

It is a happy number.

243474221605608 is a `hidden beast` number, since 2 + 4 + 3 + 4 + 7 + 4 + 2 + 21 + 6 + 0 + 5 + 608 = 666.

243474221605608 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40482241 + ... + 46105967.

It is an arithmetic number, because the mean of its divisors is an integer number (2158161857280).

Almost surely, 2^{243474221605608} is an apocalyptic number.

243474221605608 is a gapful number since it is divisible by the number (28) 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 243474221605608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414367076597760).

243474221605608 is an abundant number, since it is smaller than the sum of its proper divisors (585259931589912).

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

243474221605608 is a wasteful number, since it uses less digits than its factorization.

243474221605608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623957 (or 5623950 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 54.

The spelling of 243474221605608 in words is "two hundred forty-three trillion, four hundred seventy-four billion, two hundred twenty-one million, six hundred five thousand, six hundred eight".