878767676544 has 128 divisors (see below), whose sum is σ = 2364071935680. Its totient is φ = 289182433280.

The previous prime is 878767676543. The next prime is 878767676581. The reversal of 878767676544 is 445676767878.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (878767676543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47193124 + ... + 47211740.

Almost surely, 2^878767676544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878767676544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1182035967840).

878767676544 is an abundant number, since it is smaller than the sum of its proper divisors (1485304259136).

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

878767676544 is a wasteful number, since it uses less digits than its factorization.

878767676544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20198 (or 20186 counting only the distinct ones).

The product of its digits is 2655313920, while the sum is 75.

The spelling of 878767676544 in words is "eight hundred seventy-eight billion, seven hundred sixty-seven million, six hundred seventy-six thousand, five hundred forty-four".