382384287281 has 2 divisors, whose sum is σ = 382384287282. Its totient is φ = 382384287280.

The previous prime is 382384287211. The next prime is 382384287283. The reversal of 382384287281 is 182782483283.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381856023025 + 528264256 = 617945^2 + 22984^2 .

It is a cyclic number.

It is not a de Polignac number, because 382384287281 - 2¹⁸ = 382384025137 is a prime.

It is a super-2 number, since 2×382384287281² (a number of 24 digits) contains 22 as substring.

Together with 382384287283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (382384287283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191192143640 + 191192143641.

It is an arithmetic number, because the mean of its divisors is an integer number (191192143641).

Almost surely, 2^382384287281 is an apocalyptic number.

It is an amenable number.

382384287281 is a deficient number, since it is larger than the sum of its proper divisors (1).

382384287281 is an equidigital number, since it uses as much as digits as its factorization.

382384287281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8257536, while the sum is 56.

The spelling of 382384287281 in words is "three hundred eighty-two billion, three hundred eighty-four million, two hundred eighty-seven thousand, two hundred eighty-one".