378241853081 has 2 divisors, whose sum is σ = 378241853082. Its totient is φ = 378241853080.

The previous prime is 378241852981. The next prime is 378241853147. The reversal of 378241853081 is 180358142873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228866560000 + 149375293081 = 478400^2 + 386491^2 .

It is an emirp because it is prime and its reverse (180358142873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378241853081 - 2²⁶ = 378174744217 is a prime.

It is a super-2 number, since 2×378241853081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (378241853281) 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, 189120926540 + 189120926541.

It is an arithmetic number, because the mean of its divisors is an integer number (189120926541).

Almost surely, 2^378241853081 is an apocalyptic number.

It is an amenable number.

378241853081 is a deficient number, since it is larger than the sum of its proper divisors (1).

378241853081 is an equidigital number, since it uses as much as digits as its factorization.

378241853081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 378241853081 in words is "three hundred seventy-eight billion, two hundred forty-one million, eight hundred fifty-three thousand, eighty-one".