8170978852 has 12 divisors (see below), whose sum is σ = 14631753136. Its totient is φ = 3990477960.

The previous prime is 8170978831. The next prime is 8170978859. The reversal of 8170978852 is 2588790718.

It is a junction number, because it is equal to n+sod(n) for n = 8170978793 and 8170978802.

It is not an unprimeable number, because it can be changed into a prime (8170978859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23752674 + ... + 23753017.

Almost surely, 2^8170978852 is an apocalyptic number.

It is an amenable number.

8170978852 is a deficient number, since it is larger than the sum of its proper divisors (6460774284).

8170978852 is a wasteful number, since it uses less digits than its factorization.

8170978852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47505738 (or 47505736 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 8170978852 is about 90393.4668656978. The cubic root of 8170978852 is about 2014.1479198569.

The spelling of 8170978852 in words is "eight billion, one hundred seventy million, nine hundred seventy-eight thousand, eight hundred fifty-two".