878078948342 has 4 divisors (see below), whose sum is σ = 1317118422516. Its totient is φ = 439039474170.

The previous prime is 878078948333. The next prime is 878078948381. The reversal of 878078948342 is 243849870878.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219519737084 + ... + 219519737087.

It is an arithmetic number, because the mean of its divisors is an integer number (329279605629).

Almost surely, 2^878078948342 is an apocalyptic number.

878078948342 is a deficient number, since it is larger than the sum of its proper divisors (439039474174).

878078948342 is a wasteful number, since it uses less digits than its factorization.

878078948342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439039474173.

The product of its (nonzero) digits is 173408256, while the sum is 68.

The spelling of 878078948342 in words is "eight hundred seventy-eight billion, seventy-eight million, nine hundred forty-eight thousand, three hundred forty-two".