878788887878 has 16 divisors (see below), whose sum is σ = 1452255987600. Its totient is φ = 395494548000.

The previous prime is 878788887857. The next prime is 878788887923.

878788887878 is nontrivially palindromic in base 10.

878788887878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197745053 + ... + 197749496.

It is an arithmetic number, because the mean of its divisors is an integer number (90765999225).

Almost surely, 2^878788887878 is an apocalyptic number.

878788887878 is a deficient number, since it is larger than the sum of its proper divisors (573467099722).

878788887878 is a wasteful number, since it uses less digits than its factorization.

878788887878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395494663.

The product of its digits is 40282095616, while the sum is 92.

The spelling of 878788887878 in words is "eight hundred seventy-eight billion, seven hundred eighty-eight million, eight hundred eighty-seven thousand, eight hundred seventy-eight".