238996829568 has 64 divisors (see below), whose sum is σ = 725526097920. Its totient is φ = 68284807680.

The previous prime is 238996829567. The next prime is 238996829581. The reversal of 238996829568 is 865928699832.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 238996829568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238996829567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44453568 + ... + 44458943.

It is an arithmetic number, because the mean of its divisors is an integer number (11336345280).

Almost surely, 2^238996829568 is an apocalyptic number.

238996829568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

238996829568 is an abundant number, since it is smaller than the sum of its proper divisors (486529268352).

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

238996829568 is an equidigital number, since it uses as much as digits as its factorization.

238996829568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88912535 (or 88912523 counting only the distinct ones).

The product of its digits is 806215680, while the sum is 75.

The spelling of 238996829568 in words is "two hundred thirty-eight billion, nine hundred ninety-six million, eight hundred twenty-nine thousand, five hundred sixty-eight".