878853666358878 has 64 divisors (see below), whose sum is σ = 2034715016904192. Its totient is φ = 247867789754880.

The previous prime is 878853666358867. The next prime is 878853666358909.

878853666358878 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101503183 + ... + 109820778.

It is an arithmetic number, because the mean of its divisors is an integer number (31792422139128).

Almost surely, 2^{878853666358878} is an apocalyptic number.

878853666358878 is an abundant number, since it is smaller than the sum of its proper divisors (1155861350545314).

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

878853666358878 is a wasteful number, since it uses less digits than its factorization.

878853666358878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211325249.

The product of its digits is 624269721600, while the sum is 96.

The spelling of 878853666358878 in words is "eight hundred seventy-eight trillion, eight hundred fifty-three billion, six hundred sixty-six million, three hundred fifty-eight thousand, eight hundred seventy-eight".