688251325000 has 48 divisors (see below), whose sum is σ = 1612985863860. Its totient is φ = 275300520000.

The previous prime is 688251324991. The next prime is 688251325043. The reversal of 688251325000 is 523152886.

It can be written as a sum of positive squares in 6 ways, for example, as 168459351844 + 519791973156 = 410438^2 + 720966^2 .

It is a Harshad number since it is a multiple of its sum of digits (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 11 ways as a sum of consecutive naturals, for example, 13740027 + ... + 13790026.

Almost surely, 2^688251325000 is an apocalyptic number.

It is an amenable number.

688251325000 is an abundant number, since it is smaller than the sum of its proper divisors (924734538860).

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

688251325000 is an equidigital number, since it uses as much as digits as its factorization.

688251325000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27530084 (or 27530060 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

Adding to 688251325000 its reverse (523152886), we get a palindrome (688774477886).

The spelling of 688251325000 in words is "six hundred eighty-eight billion, two hundred fifty-one million, three hundred twenty-five thousand".