684398598076 has 6 divisors (see below), whose sum is σ = 1197697546640. Its totient is φ = 342199299036.

The previous prime is 684398598073. The next prime is 684398598113. The reversal of 684398598076 is 670895893486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684398598073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85549824756 + ... + 85549824763.

Almost surely, 2^684398598076 is an apocalyptic number.

It is an amenable number.

684398598076 is a deficient number, since it is larger than the sum of its proper divisors (513298948564).

684398598076 is a wasteful number, since it uses less digits than its factorization.

684398598076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171099649523 (or 171099649521 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 73.

The spelling of 684398598076 in words is "six hundred eighty-four billion, three hundred ninety-eight million, five hundred ninety-eight thousand, seventy-six".