878893398879 has 16 divisors (see below), whose sum is σ = 1222902816000. Its totient is φ = 560410399296.

The previous prime is 878893398839. The next prime is 878893398913. The reversal of 878893398879 is 978893398878.

It is not a de Polignac number, because 878893398879 - 2⁹ = 878893398367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 878893398795 and 878893398804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878893398829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417627 + ... + 1390035.

It is an arithmetic number, because the mean of its divisors is an integer number (76431426000).

Almost surely, 2^878893398879 is an apocalyptic number.

878893398879 is a deficient number, since it is larger than the sum of its proper divisors (344009417121).

878893398879 is a wasteful number, since it uses less digits than its factorization.

878893398879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985534.

The product of its digits is 10534551552, while the sum is 87.

Subtracting 878893398879 from its reverse (978893398878), we obtain a palindrome (99999999999).

The spelling of 878893398879 in words is "eight hundred seventy-eight billion, eight hundred ninety-three million, three hundred ninety-eight thousand, eight hundred seventy-nine".