8787667878 has 24 divisors (see below), whose sum is σ = 20770851816. Its totient is φ = 2662929600.

The previous prime is 8787667877. The next prime is 8787667907.

8787667878 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8787667871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22190883 + ... + 22191278.

It is an arithmetic number, because the mean of its divisors is an integer number (865452159).

Almost surely, 2^8787667878 is an apocalyptic number.

8787667878 is an abundant number, since it is smaller than the sum of its proper divisors (11983183938).

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

8787667878 is a wasteful number, since it uses less digits than its factorization.

8787667878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44382180 (or 44382177 counting only the distinct ones).

The product of its digits is 354041856, while the sum is 72.

The square root of 8787667878 is about 93742.5617209174. The cubic root of 8787667878 is about 2063.5953706428.

The spelling of 8787667878 in words is "eight billion, seven hundred eighty-seven million, six hundred sixty-seven thousand, eight hundred seventy-eight".