243836568425 has 24 divisors (see below), whose sum is σ = 310851431616. Its totient is φ = 189600143040.

The previous prime is 243836568421. The next prime is 243836568427. The reversal of 243836568425 is 524865638342.

243836568425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243836568425 - 2² = 243836568421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243836568421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758174 + ... + 1030776.

It is an arithmetic number, because the mean of its divisors is an integer number (12952142984).

Almost surely, 2^243836568425 is an apocalyptic number.

243836568425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243836568425 is a deficient number, since it is larger than the sum of its proper divisors (67014863191).

243836568425 is a wasteful number, since it uses less digits than its factorization.

243836568425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273617 (or 273612 counting only the distinct ones).

The product of its digits is 33177600, while the sum is 56.

The spelling of 243836568425 in words is "two hundred forty-three billion, eight hundred thirty-six million, five hundred sixty-eight thousand, four hundred twenty-five".