684534734632 has 64 divisors (see below), whose sum is σ = 1634890608000. Its totient is φ = 261582483456.

The previous prime is 684534734573. The next prime is 684534734671. The reversal of 684534734632 is 236437435486.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18904257 + ... + 18940432.

It is an arithmetic number, because the mean of its divisors is an integer number (25545165750).

Almost surely, 2^684534734632 is an apocalyptic number.

It is an amenable number.

684534734632 is an abundant number, since it is smaller than the sum of its proper divisors (950355873368).

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

684534734632 is a wasteful number, since it uses less digits than its factorization.

684534734632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37844738 (or 37844734 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 55.

The spelling of 684534734632 in words is "six hundred eighty-four billion, five hundred thirty-four million, seven hundred thirty-four thousand, six hundred thirty-two".