378958856233 has 2 divisors, whose sum is σ = 378958856234. Its totient is φ = 378958856232.

The previous prime is 378958856231. The next prime is 378958856249. The reversal of 378958856233 is 332658859873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257888261929 + 121070594304 = 507827^2 + 347952^2 .

It is a cyclic number.

It is not a de Polignac number, because 378958856233 - 2¹ = 378958856231 is a prime.

It is a super-3 number, since 3×378958856233³ (a number of 36 digits) contains 333 as substring.

Together with 378958856231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (378958856231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189479428116 + 189479428117.

It is an arithmetic number, because the mean of its divisors is an integer number (189479428117).

Almost surely, 2^378958856233 is an apocalyptic number.

It is an amenable number.

378958856233 is a deficient number, since it is larger than the sum of its proper divisors (1).

378958856233 is an equidigital number, since it uses as much as digits as its factorization.

378958856233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 261273600, while the sum is 67.

The spelling of 378958856233 in words is "three hundred seventy-eight billion, nine hundred fifty-eight million, eight hundred fifty-six thousand, two hundred thirty-three".