238542685504 has 28 divisors (see below), whose sum is σ = 473448446548. Its totient is φ = 119248588800.

The previous prime is 238542685501. The next prime is 238542685517. The reversal of 238542685504 is 405586245832.

It can be written as a sum of positive squares in 2 ways, for example, as 64780430400 + 173762255104 = 254520^2 + 416848^2 .

It is a super-2 number, since 2×238542685504² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238542685501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14907 + ... + 690874.

It is an arithmetic number, because the mean of its divisors is an integer number (16908873091).

Almost surely, 2^238542685504 is an apocalyptic number.

It is an amenable number.

238542685504 is a deficient number, since it is larger than the sum of its proper divisors (234905761044).

238542685504 is an equidigital number, since it uses as much as digits as its factorization.

238542685504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711074 (or 711064 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 52.

The spelling of 238542685504 in words is "two hundred thirty-eight billion, five hundred forty-two million, six hundred eighty-five thousand, five hundred four".