243725386827 has 32 divisors (see below), whose sum is σ = 366708787200. Its totient is φ = 142863380352.

The previous prime is 243725386813. The next prime is 243725386831. The reversal of 243725386827 is 728683527342.

243725386827 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 243725386827 - 2⁸ = 243725386571 is a prime.

It is a super-3 number, since 3×243725386827³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (243725386867) 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 31 ways as a sum of consecutive naturals, for example, 354052 + ... + 782817.

It is an arithmetic number, because the mean of its divisors is an integer number (11459649600).

Almost surely, 2^243725386827 is an apocalyptic number.

243725386827 is a deficient number, since it is larger than the sum of its proper divisors (122983400373).

243725386827 is a wasteful number, since it uses less digits than its factorization.

243725386827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137147.

The product of its digits is 27095040, while the sum is 57.

The spelling of 243725386827 in words is "two hundred forty-three billion, seven hundred twenty-five million, three hundred eighty-six thousand, eight hundred twenty-seven".