238154670067 has 2 divisors, whose sum is σ = 238154670068. Its totient is φ = 238154670066.

The previous prime is 238154669989. The next prime is 238154670101. The reversal of 238154670067 is 760076451832.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238154670067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238154670067.

It is not a weakly prime, because it can be changed into another prime (238124670067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119077335033 + 119077335034.

It is an arithmetic number, because the mean of its divisors is an integer number (119077335034).

Almost surely, 2^238154670067 is an apocalyptic number.

238154670067 is a deficient number, since it is larger than the sum of its proper divisors (1).

238154670067 is an equidigital number, since it uses as much as digits as its factorization.

238154670067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 238154670067 in words is "two hundred thirty-eight billion, one hundred fifty-four million, six hundred seventy thousand, sixty-seven".