378331948879 has 2 divisors, whose sum is σ = 378331948880. Its totient is φ = 378331948878.

The previous prime is 378331948873. The next prime is 378331948913. The reversal of 378331948879 is 978849133873.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378331948879 - 2²¹ = 378329851727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378331948873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189165974439 + 189165974440.

It is an arithmetic number, because the mean of its divisors is an integer number (189165974440).

Almost surely, 2^378331948879 is an apocalyptic number.

378331948879 is a deficient number, since it is larger than the sum of its proper divisors (1).

378331948879 is an equidigital number, since it uses as much as digits as its factorization.

378331948879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 70.

The spelling of 378331948879 in words is "three hundred seventy-eight billion, three hundred thirty-one million, nine hundred forty-eight thousand, eight hundred seventy-nine".