243289570056 has 32 divisors (see below), whose sum is σ = 655010381760. Its totient is φ = 74858329152.

The previous prime is 243289570049. The next prime is 243289570063. The reversal of 243289570056 is 650075982342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243289570049) and next prime (243289570063).

It is a junction number, because it is equal to n+sod(n) for n = 243289569990 and 243289570008.

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, 389886820 + ... + 389887443.

It is an arithmetic number, because the mean of its divisors is an integer number (20469074430).

Almost surely, 2^243289570056 is an apocalyptic number.

243289570056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

243289570056 is an abundant number, since it is smaller than the sum of its proper divisors (411720811704).

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

243289570056 is a wasteful number, since it uses less digits than its factorization.

243289570056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779774285 (or 779774281 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 243289570056 in words is "two hundred forty-three billion, two hundred eighty-nine million, five hundred seventy thousand, fifty-six".