238838909937 has 16 divisors (see below), whose sum is σ = 320733553920. Its totient is φ = 158089059072.

The previous prime is 238838909929. The next prime is 238838909951. The reversal of 238838909937 is 739909838832.

It is not a de Polignac number, because 238838909937 - 2³ = 238838909929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238838909957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252598 + ... + 735855.

It is an arithmetic number, because the mean of its divisors is an integer number (20045847120).

Almost surely, 2^238838909937 is an apocalyptic number.

It is an amenable number.

238838909937 is a deficient number, since it is larger than the sum of its proper divisors (81894643983).

238838909937 is a wasteful number, since it uses less digits than its factorization.

238838909937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989032.

The product of its (nonzero) digits is 141087744, while the sum is 69.

The spelling of 238838909937 in words is "two hundred thirty-eight billion, eight hundred thirty-eight million, nine hundred nine thousand, nine hundred thirty-seven".