238136474067 has 4 divisors (see below), whose sum is σ = 317515298760. Its totient is φ = 158757649376.

The previous prime is 238136474063. The next prime is 238136474087. The reversal of 238136474067 is 760474631832.

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

It is a cyclic number.

It is not a de Polignac number, because 238136474067 - 2² = 238136474063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238136474063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39689412342 + ... + 39689412347.

It is an arithmetic number, because the mean of its divisors is an integer number (79378824690).

Almost surely, 2^238136474067 is an apocalyptic number.

238136474067 is a deficient number, since it is larger than the sum of its proper divisors (79378824693).

238136474067 is an equidigital number, since it uses as much as digits as its factorization.

238136474067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79378824692.

The product of its (nonzero) digits is 4064256, while the sum is 51.

The spelling of 238136474067 in words is "two hundred thirty-eight billion, one hundred thirty-six million, four hundred seventy-four thousand, sixty-seven".