878143341878 has 8 divisors (see below), whose sum is σ = 1436961832200. Its totient is φ = 399156064480.

The previous prime is 878143341863. The next prime is 878143341919.

878143341878 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×878143341878² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 878143341878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19957803203 + ... + 19957803246.

It is an arithmetic number, because the mean of its divisors is an integer number (179620229025).

Almost surely, 2^878143341878 is an apocalyptic number.

878143341878 is a deficient number, since it is larger than the sum of its proper divisors (558818490322).

878143341878 is a wasteful number, since it uses less digits than its factorization.

878143341878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39915606462.

The product of its digits is 28901376, while the sum is 62.

The spelling of 878143341878 in words is "eight hundred seventy-eight billion, one hundred forty-three million, three hundred forty-one thousand, eight hundred seventy-eight".