682640574534 has 80 divisors (see below), whose sum is σ = 1540490688000. Its totient is φ = 225931026816.

The previous prime is 682640574533. The next prime is 682640574571. The reversal of 682640574534 is 435475046286.

682640574534 is a `hidden beast` number, since 6 + 8 + 2 + 64 + 0 + 574 + 5 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682640574533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 95751882 + ... + 95759010.

It is an arithmetic number, because the mean of its divisors is an integer number (19256133600).

Almost surely, 2^682640574534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 682640574534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770245344000).

682640574534 is an abundant number, since it is smaller than the sum of its proper divisors (857850113466).

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

682640574534 is a wasteful number, since it uses less digits than its factorization.

682640574534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11259 (or 11250 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 54.

The spelling of 682640574534 in words is "six hundred eighty-two billion, six hundred forty million, five hundred seventy-four thousand, five hundred thirty-four".