84686447970576 has 45 divisors (see below), whose sum is σ = 237004743302821. Its totient is φ = 28228779180096.

The previous prime is 84686447970533. The next prime is 84686447970617. The reversal of 84686447970576 is 67507974468648.

The square root of 84686447970576 is 9202524.

It is a perfect power (a square), and thus also a powerful number.

84686447970576 is a `hidden beast` number, since 8 + 4 + 6 + 8 + 6 + 4 + 479 + 70 + 5 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8190013712400 + 76496434258176 = 2861820^2 + 8746224^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84686447970495 and 84686447970504.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 110046850 + ... + 110813726.

Almost surely, 2^{84686447970576} is an apocalyptic number.

84686447970576 is the 9202524-th square number.

It is an amenable number.

84686447970576 is an abundant number, since it is smaller than the sum of its proper divisors (152318295332245).

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

84686447970576 is an frugal number, since it uses more digits than its factorization.

84686447970576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533768 (or 766882 counting only the distinct ones).

The product of its (nonzero) digits is 13655900160, while the sum is 81.

The spelling of 84686447970576 in words is "eighty-four trillion, six hundred eighty-six billion, four hundred forty-seven million, nine hundred seventy thousand, five hundred seventy-six".