878400144870 has 32 divisors (see below), whose sum is σ = 2110037686272. Its totient is φ = 234031445472.

The previous prime is 878400144863. The next prime is 878400144883. The reversal of 878400144870 is 78441004878.

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 15 ways as a sum of consecutive naturals, for example, 13002822 + ... + 13070201.

It is an arithmetic number, because the mean of its divisors is an integer number (65938677696).

Almost surely, 2^878400144870 is an apocalyptic number.

878400144870 is an abundant number, since it is smaller than the sum of its proper divisors (1231637541402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878400144870 is a wasteful number, since it uses less digits than its factorization.

878400144870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26074156.

The product of its (nonzero) digits is 1605632, while the sum is 51.

The spelling of 878400144870 in words is "eight hundred seventy-eight billion, four hundred million, one hundred forty-four thousand, eight hundred seventy".