238732785655 has 16 divisors (see below), whose sum is σ = 352589961024. Its totient is φ = 151109982720.

The previous prime is 238732785653. The next prime is 238732785701. The reversal of 238732785655 is 556587237832.

It is not a de Polignac number, because 238732785655 - 2¹ = 238732785653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238732785593 and 238732785602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238732785653) 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, 262343266 + ... + 262344175.

It is an arithmetic number, because the mean of its divisors is an integer number (22036872564).

Almost surely, 2^238732785655 is an apocalyptic number.

238732785655 is a deficient number, since it is larger than the sum of its proper divisors (113857175369).

238732785655 is a wasteful number, since it uses less digits than its factorization.

238732785655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524687466.

The product of its digits is 84672000, while the sum is 61.

The spelling of 238732785655 in words is "two hundred thirty-eight billion, seven hundred thirty-two million, seven hundred eighty-five thousand, six hundred fifty-five".