238527854135951 has 2 divisors, whose sum is σ = 238527854135952. Its totient is φ = 238527854135950.

The previous prime is 238527854135939. The next prime is 238527854136017. The reversal of 238527854135951 is 159531458725832.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238527854135951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238527854135911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119263927067975 + 119263927067976.

It is an arithmetic number, because the mean of its divisors is an integer number (119263927067976).

Almost surely, 2^{238527854135951} is an apocalyptic number.

238527854135951 is a deficient number, since it is larger than the sum of its proper divisors (1).

238527854135951 is an equidigital number, since it uses as much as digits as its factorization.

238527854135951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880000, while the sum is 68.

The spelling of 238527854135951 in words is "two hundred thirty-eight trillion, five hundred twenty-seven billion, eight hundred fifty-four million, one hundred thirty-five thousand, nine hundred fifty-one".