878557969755878 has 8 divisors (see below), whose sum is σ = 1318179516889872. Its totient is φ = 439164797459256.

The previous prime is 878557969755877. The next prime is 878557969755881.

878557969755878 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878557969755877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57093699725 + ... + 57093715112.

It is an arithmetic number, because the mean of its divisors is an integer number (164772439611234).

Almost surely, 2^{878557969755878} is an apocalyptic number.

878557969755878 is a deficient number, since it is larger than the sum of its proper divisors (439621547133994).

878557969755878 is a wasteful number, since it uses less digits than its factorization.

878557969755878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114187418686.

The product of its digits is 2987228160000, while the sum is 104.

The spelling of 878557969755878 in words is "eight hundred seventy-eight trillion, five hundred fifty-seven billion, nine hundred sixty-nine million, seven hundred fifty-five thousand, eight hundred seventy-eight".