683742187728 has 60 divisors (see below), whose sum is σ = 1931411971008. Its totient is φ = 225784019520.

The previous prime is 683742187717. The next prime is 683742187741. The reversal of 683742187728 is 827781247386.

It is a happy number.

683742187728 is a `hidden beast` number, since 68 + 3 + 7 + 421 + 87 + 72 + 8 = 666.

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 11 ways as a sum of consecutive naturals, for example, 22172488 + ... + 22203303.

Almost surely, 2^683742187728 is an apocalyptic number.

It is an amenable number.

683742187728 is an abundant number, since it is smaller than the sum of its proper divisors (1247669783280).

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

683742187728 is a wasteful number, since it uses less digits than its factorization.

683742187728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44375912 (or 44375903 counting only the distinct ones).

The product of its digits is 50577408, while the sum is 63.

The spelling of 683742187728 in words is "six hundred eighty-three billion, seven hundred forty-two million, one hundred eighty-seven thousand, seven hundred twenty-eight".