378441565144859 has 2 divisors, whose sum is σ = 378441565144860. Its totient is φ = 378441565144858.

The previous prime is 378441565144849. The next prime is 378441565144949. The reversal of 378441565144859 is 958441565144873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378441565144859 - 2¹² = 378441565140763 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (378441565144849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189220782572429 + 189220782572430.

It is an arithmetic number, because the mean of its divisors is an integer number (189220782572430).

Almost surely, 2^{378441565144859} is an apocalyptic number.

378441565144859 is a deficient number, since it is larger than the sum of its proper divisors (1).

378441565144859 is an equidigital number, since it uses as much as digits as its factorization.

378441565144859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432000, while the sum is 74.

The spelling of 378441565144859 in words is "three hundred seventy-eight trillion, four hundred forty-one billion, five hundred sixty-five million, one hundred forty-four thousand, eight hundred fifty-nine".