681641303750 has 40 divisors (see below), whose sum is σ = 1393820166024. Its totient is φ = 247869560000.

The previous prime is 681641303741. The next prime is 681641303789. The reversal of 681641303750 is 57303146186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24773207 + ... + 24800706.

Almost surely, 2^681641303750 is an apocalyptic number.

681641303750 is an abundant number, since it is smaller than the sum of its proper divisors (712178862274).

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

681641303750 is a wasteful number, since it uses less digits than its factorization.

681641303750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49573946 (or 49573931 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 681641303750 in words is "six hundred eighty-one billion, six hundred forty-one million, three hundred three thousand, seven hundred fifty".