84194374378 has 16 divisors (see below), whose sum is σ = 132953019840. Its totient is φ = 39877185600.

The previous prime is 84194374361. The next prime is 84194374387. The reversal of 84194374378 is 87347349148.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 245443 + ... + 478153.

It is an arithmetic number, because the mean of its divisors is an integer number (8309563740).

Almost surely, 2^84194374378 is an apocalyptic number.

84194374378 is a deficient number, since it is larger than the sum of its proper divisors (48758645462).

84194374378 is a wasteful number, since it uses less digits than its factorization.

84194374378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242253.

The product of its digits is 16257024, while the sum is 58.

The spelling of 84194374378 in words is "eighty-four billion, one hundred ninety-four million, three hundred seventy-four thousand, three hundred seventy-eight".