238885506885 has 16 divisors (see below), whose sum is σ = 402333485760. Its totient is φ = 120700045440.

The previous prime is 238885506869. The next prime is 238885506889. The reversal of 238885506885 is 588605588832.

It is not a de Polignac number, because 238885506885 - 2⁴ = 238885506869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238885506889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419097096 + ... + 419097665.

It is an arithmetic number, because the mean of its divisors is an integer number (25145842860).

Almost surely, 2^238885506885 is an apocalyptic number.

It is an amenable number.

238885506885 is a deficient number, since it is larger than the sum of its proper divisors (163447978875).

238885506885 is a wasteful number, since it uses less digits than its factorization.

238885506885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838194788.

The product of its (nonzero) digits is 147456000, while the sum is 66.

The spelling of 238885506885 in words is "two hundred thirty-eight billion, eight hundred eighty-five million, five hundred six thousand, eight hundred eighty-five".