238418483491 has 2 divisors, whose sum is σ = 238418483492. Its totient is φ = 238418483490.

The previous prime is 238418483461. The next prime is 238418483593. The reversal of 238418483491 is 194384814832.

238418483491 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 is a cyclic number.

It is not a de Polignac number, because 238418483491 - 2¹¹ = 238418481443 is a prime.

It is not a weakly prime, because it can be changed into another prime (238418483461) 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, 119209241745 + 119209241746.

It is an arithmetic number, because the mean of its divisors is an integer number (119209241746).

Almost surely, 2^238418483491 is an apocalyptic number.

238418483491 is a deficient number, since it is larger than the sum of its proper divisors (1).

238418483491 is an equidigital number, since it uses as much as digits as its factorization.

238418483491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5308416, while the sum is 55.

The spelling of 238418483491 in words is "two hundred thirty-eight billion, four hundred eighteen million, four hundred eighty-three thousand, four hundred ninety-one".