84668406680 has 64 divisors (see below), whose sum is σ = 223808810400. Its totient is φ = 28420162560.

The previous prime is 84668406643. The next prime is 84668406703. The reversal of 84668406680 is 8660486648.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 7395365 + ... + 7406804.

Almost surely, 2^84668406680 is an apocalyptic number.

It is an amenable number.

84668406680 is an abundant number, since it is smaller than the sum of its proper divisors (139140403720).

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

84668406680 is a wasteful number, since it uses less digits than its factorization.

84668406680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14802204 (or 14802200 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 84668406680 in words is "eighty-four billion, six hundred sixty-eight million, four hundred six thousand, six hundred eighty".