878459954878 has 96 divisors (see below), whose sum is σ = 1540012061952. Its totient is φ = 372442963200.

The previous prime is 878459954851. The next prime is 878459954899.

878459954878 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (82).

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 47 ways as a sum of consecutive naturals, for example, 78128325 + ... + 78139567.

It is an arithmetic number, because the mean of its divisors is an integer number (16041792312).

Almost surely, 2^878459954878 is an apocalyptic number.

878459954878 is a deficient number, since it is larger than the sum of its proper divisors (661552107074).

878459954878 is a wasteful number, since it uses less digits than its factorization.

878459954878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458 (or 11429 counting only the distinct ones).

The product of its digits is 6502809600, while the sum is 82.

The spelling of 878459954878 in words is "eight hundred seventy-eight billion, four hundred fifty-nine million, nine hundred fifty-four thousand, eight hundred seventy-eight".