238172017063 has 4 divisors (see below), whose sum is σ = 238176134640. Its totient is φ = 238167899488.

The previous prime is 238172017003. The next prime is 238172017103. The reversal of 238172017063 is 360710271832.

It is a happy number.

238172017063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238172017063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238172017003) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1970770 + ... + 2088127.

It is an arithmetic number, because the mean of its divisors is an integer number (59544033660).

Almost surely, 2^238172017063 is an apocalyptic number.

238172017063 is a deficient number, since it is larger than the sum of its proper divisors (4117577).

238172017063 is an equidigital number, since it uses as much as digits as its factorization.

238172017063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117576.

The product of its (nonzero) digits is 84672, while the sum is 40.

Adding to 238172017063 its reverse (360710271832), we get a palindrome (598882288895).

The spelling of 238172017063 in words is "two hundred thirty-eight billion, one hundred seventy-two million, seventeen thousand, sixty-three".