238418483593 has 2 divisors, whose sum is σ = 238418483594. Its totient is φ = 238418483592.

The previous prime is 238418483491. The next prime is 238418483627. The reversal of 238418483593 is 395384814832.

It is a happy number.

238418483593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190298357824 + 48120125769 = 436232^2 + 219363^2 .

It is a cyclic number.

It is not a de Polignac number, because 238418483593 - 2⁹ = 238418483081 is a prime.

It is a super-2 number, since 2×238418483593² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (238418483993) 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 as a sum of consecutive naturals, namely, 119209241796 + 119209241797.

It is an arithmetic number, because the mean of its divisors is an integer number (119209241797).

Almost surely, 2^238418483593 is an apocalyptic number.

It is an amenable number.

238418483593 is a deficient number, since it is larger than the sum of its proper divisors (1).

238418483593 is an equidigital number, since it uses as much as digits as its factorization.

238418483593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19906560, while the sum is 58.

The spelling of 238418483593 in words is "two hundred thirty-eight billion, four hundred eighteen million, four hundred eighty-three thousand, five hundred ninety-three".