8102878911 has 24 divisors (see below), whose sum is σ = 11784558240. Its totient is φ = 5364870336.

The previous prime is 8102878907. The next prime is 8102878919. The reversal of 8102878911 is 1198782018.

It is a happy number.

It is not a de Polignac number, because 8102878911 - 2² = 8102878907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102878919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2903905 + ... + 2906693.

It is an arithmetic number, because the mean of its divisors is an integer number (491023260).

Almost surely, 2^8102878911 is an apocalyptic number.

8102878911 is a deficient number, since it is larger than the sum of its proper divisors (3681679329).

8102878911 is a wasteful number, since it uses less digits than its factorization.

8102878911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895 (or 4892 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 45.

The square root of 8102878911 is about 90015.9925291056. The cubic root of 8102878911 is about 2008.5367526665.

The spelling of 8102878911 in words is "eight billion, one hundred two million, eight hundred seventy-eight thousand, nine hundred eleven".