238399633506 has 64 divisors (see below), whose sum is σ = 494586829440. Its totient is φ = 76545907200.

The previous prime is 238399633499. The next prime is 238399633531. The reversal of 238399633506 is 605336993832.

238399633506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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, 56746206 + ... + 56750406.

It is an arithmetic number, because the mean of its divisors is an integer number (7727919210).

Almost surely, 2^238399633506 is an apocalyptic number.

238399633506 is an abundant number, since it is smaller than the sum of its proper divisors (256187195934).

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

238399633506 is a wasteful number, since it uses less digits than its factorization.

238399633506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6739.

The product of its (nonzero) digits is 18895680, while the sum is 57.

The spelling of 238399633506 in words is "two hundred thirty-eight billion, three hundred ninety-nine million, six hundred thirty-three thousand, five hundred six".