378394989493873 has 16 divisors (see below), whose sum is σ = 430793544456576. Its totient is φ = 328999840583040.

The previous prime is 378394989493867. The next prime is 378394989493921.

378394989493873 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 378394989493873 - 2³³ = 378386399559281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378394989493273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87150786 + ... + 91389547.

It is an arithmetic number, because the mean of its divisors is an integer number (26924596528536).

Almost surely, 2^{378394989493873} is an apocalyptic number.

It is an amenable number.

378394989493873 is a deficient number, since it is larger than the sum of its proper divisors (52398554962703).

378394989493873 is a wasteful number, since it uses less digits than its factorization.

378394989493873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178548744.

The product of its digits is 213324668928, while the sum is 94.

The spelling of 378394989493873 in words is "three hundred seventy-eight trillion, three hundred ninety-four billion, nine hundred eighty-nine million, four hundred ninety-three thousand, eight hundred seventy-three".