84686068648 has 8 divisors (see below), whose sum is σ = 158786378730. Its totient is φ = 42343034320.

The previous prime is 84686068613. The next prime is 84686068669.

84686068648 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 75316215844 + 9369852804 = 274438^2 + 96798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 84686068648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5292879283 + ... + 5292879298.

Almost surely, 2^84686068648 is an apocalyptic number.

It is an amenable number.

84686068648 is a deficient number, since it is larger than the sum of its proper divisors (74100310082).

84686068648 is a wasteful number, since it uses less digits than its factorization.

84686068648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585758587 (or 10585758583 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 64.

The spelling of 84686068648 in words is "eighty-four billion, six hundred eighty-six million, sixty-eight thousand, six hundred forty-eight".