170862978870 has 192 divisors, whose sum is σ = 458127581184. Its totient is φ = 44164074240.

The previous prime is 170862978857. The next prime is 170862978893. The reversal of 170862978870 is 78879268071.

170862978870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 170862978798 and 170862978807.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 152148129 + ... + 152149251.

It is an arithmetic number, because the mean of its divisors is an integer number (2386081152).

Almost surely, 2^170862978870 is an apocalyptic number.

170862978870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 170862978870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229063790592).

170862978870 is an abundant number, since it is smaller than the sum of its proper divisors (287264602314).

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

170862978870 is a wasteful number, since it uses less digits than its factorization.

170862978870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 63.

The spelling of 170862978870 in words is "one hundred seventy billion, eight hundred sixty-two million, nine hundred seventy-eight thousand, eight hundred seventy".