238854088558493 has 2 divisors, whose sum is σ = 238854088558494. Its totient is φ = 238854088558492.

The previous prime is 238854088558487. The next prime is 238854088558513. The reversal of 238854088558493 is 394855880458832.

238854088558493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223594541674084 + 15259546884409 = 14953078^2 + 3906347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238854088558493 is a prime.

It is a super-2 number, since 2×238854088558493² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238854088558433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119427044279246 + 119427044279247.

It is an arithmetic number, because the mean of its divisors is an integer number (119427044279247).

Almost surely, 2^{238854088558493} is an apocalyptic number.

It is an amenable number.

238854088558493 is a deficient number, since it is larger than the sum of its proper divisors (1).

238854088558493 is an equidigital number, since it uses as much as digits as its factorization.

238854088558493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832000, while the sum is 80.

The spelling of 238854088558493 in words is "two hundred thirty-eight trillion, eight hundred fifty-four billion, eighty-eight million, five hundred fifty-eight thousand, four hundred ninety-three".