238894953075529 has 3 divisors (see below), whose sum is σ = 238894968531757. Its totient is φ = 238894937619302.

The previous prime is 238894953075523. The next prime is 238894953075601. The reversal of 238894953075529 is 925570359498832.

The square root of 238894953075529 is 15456227.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 238894953075529 - 2²¹ = 238894950978377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238894953075523) 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 2 ways as a sum of consecutive naturals, for example, 7728114 + ... + 23184340.

Almost surely, 2^{238894953075529} is an apocalyptic number.

238894953075529 is the 15456227-th square number.

238894953075529 is the 7728114-th centered octagonal number.

It is an amenable number.

238894953075529 is a deficient number, since it is larger than the sum of its proper divisors (15456228).

238894953075529 is an frugal number, since it uses more digits than its factorization.

238894953075529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30912454 (or 15456227 counting only the distinct ones).

The product of its (nonzero) digits is 5878656000, while the sum is 79.

The spelling of 238894953075529 in words is "two hundred thirty-eight trillion, eight hundred ninety-four billion, nine hundred fifty-three million, seventy-five thousand, five hundred twenty-nine".