8787942871 has 4 divisors (see below), whose sum is σ = 9250466200. Its totient is φ = 8325419544.

The previous prime is 8787942851. The next prime is 8787942881. The reversal of 8787942871 is 1782497878.

8787942871 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8787942871 - 2¹³ = 8787934679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8787942811) 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, 231261636 + ... + 231261673.

It is an arithmetic number, because the mean of its divisors is an integer number (2312616550).

Almost surely, 2^8787942871 is an apocalyptic number.

8787942871 is a deficient number, since it is larger than the sum of its proper divisors (462523329).

8787942871 is a wasteful number, since it uses less digits than its factorization.

8787942871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462523328.

The product of its digits is 12644352, while the sum is 61.

The square root of 8787942871 is about 93744.0284551501. The cubic root of 8787942871 is about 2063.6168958214.

The spelling of 8787942871 in words is "eight billion, seven hundred eighty-seven million, nine hundred forty-two thousand, eight hundred seventy-one".