8178871012 has 24 divisors (see below), whose sum is σ = 15417360000. Its totient is φ = 3774047136.

The previous prime is 8178871007. The next prime is 8178871031. The reversal of 8178871012 is 2101788718.

It is a self number, because there is not a number n which added to its sum of digits gives 8178871012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272739 + ... + 301237.

It is an arithmetic number, because the mean of its divisors is an integer number (642390000).

Almost surely, 2^8178871012 is an apocalyptic number.

It is an amenable number.

8178871012 is a deficient number, since it is larger than the sum of its proper divisors (7238488988).

8178871012 is a wasteful number, since it uses less digits than its factorization.

8178871012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34035 (or 34033 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 43.

The square root of 8178871012 is about 90437.1108118785. The cubic root of 8178871012 is about 2014.7961841929.

The spelling of 8178871012 in words is "eight billion, one hundred seventy-eight million, eight hundred seventy-one thousand, twelve".