243825956540 has 12 divisors (see below), whose sum is σ = 512034508776. Its totient is φ = 97530382608.

The previous prime is 243825956531. The next prime is 243825956557. The reversal of 243825956540 is 45659528342.

243825956540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6095648894 + ... + 6095648933.

It is an arithmetic number, because the mean of its divisors is an integer number (42669542398).

Almost surely, 2^243825956540 is an apocalyptic number.

243825956540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243825956540 is an abundant number, since it is smaller than the sum of its proper divisors (268208552236).

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

243825956540 is a wasteful number, since it uses less digits than its factorization.

243825956540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12191297836 (or 12191297834 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 243825956540 in words is "two hundred forty-three billion, eight hundred twenty-five million, nine hundred fifty-six thousand, five hundred forty".