688628671296 has 56 divisors (see below), whose sum is σ = 1845059982720. Its totient is φ = 226637279232.

The previous prime is 688628671277. The next prime is 688628671303. The reversal of 688628671296 is 692176826886.

It is a self number, because there is not a number n which added to its sum of digits gives 688628671296.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 22684881 + ... + 22715216.

Almost surely, 2^688628671296 is an apocalyptic number.

It is an amenable number.

688628671296 is an abundant number, since it is smaller than the sum of its proper divisors (1156431311424).

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

688628671296 is a wasteful number, since it uses less digits than its factorization.

688628671296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45400191 (or 45400181 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 69.

The spelling of 688628671296 in words is "six hundred eighty-eight billion, six hundred twenty-eight million, six hundred seventy-one thousand, two hundred ninety-six".