238405238565 has 192 divisors, whose sum is σ = 455817922560. Its totient is φ = 105859353600.

The previous prime is 238405238563. The next prime is 238405238573. The reversal of 238405238565 is 565832504832.

It is not a de Polignac number, because 238405238565 - 2¹ = 238405238563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238405238563) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 340092715 + ... + 340093415.

It is an arithmetic number, because the mean of its divisors is an integer number (2374051680).

Almost surely, 2^238405238565 is an apocalyptic number.

It is an amenable number.

238405238565 is a deficient number, since it is larger than the sum of its proper divisors (217412683995).

238405238565 is a wasteful number, since it uses less digits than its factorization.

238405238565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 51.

The spelling of 238405238565 in words is "two hundred thirty-eight billion, four hundred five million, two hundred thirty-eight thousand, five hundred sixty-five".