878877778878 has 72 divisors (see below), whose sum is σ = 2093299954200. Its totient is φ = 266299244640.

The previous prime is 878877778873. The next prime is 878877778913.

878877778878 is nontrivially palindromic in base 10.

878877778878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878877778873) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 34027053 + ... + 34052871.

It is an arithmetic number, because the mean of its divisors is an integer number (29073610475).

Almost surely, 2^878877778878 is an apocalyptic number.

878877778878 is an abundant number, since it is smaller than the sum of its proper divisors (1214422175322).

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

878877778878 is a wasteful number, since it uses less digits than its factorization.

878877778878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41478 (or 41464 counting only the distinct ones).

The product of its digits is 30840979456, while the sum is 90.

The spelling of 878877778878 in words is "eight hundred seventy-eight billion, eight hundred seventy-seven million, seven hundred seventy-eight thousand, eight hundred seventy-eight".