684051634480 has 40 divisors (see below), whose sum is σ = 1683974174112. Its totient is φ = 257525320704.

The previous prime is 684051634459. The next prime is 684051634501. The reversal of 684051634480 is 84436150486.

It is an interprime number because it is at equal distance from previous prime (684051634459) and next prime (684051634501).

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 251488212 + ... + 251490931.

Almost surely, 2^684051634480 is an apocalyptic number.

It is an amenable number.

684051634480 is an abundant number, since it is smaller than the sum of its proper divisors (999922539632).

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

684051634480 is a wasteful number, since it uses less digits than its factorization.

684051634480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502979173 (or 502979167 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 684051634480 in words is "six hundred eighty-four billion, fifty-one million, six hundred thirty-four thousand, four hundred eighty".