680752009701 has 6 divisors (see below), whose sum is σ = 983308458470. Its totient is φ = 453834673128.

The previous prime is 680752009661. The next prime is 680752009703. The reversal of 680752009701 is 107900257086.

It can be written as a sum of positive squares in only one way, i.e., 638696664225 + 42055345476 = 799185^2 + 205074^2 .

It is not a de Polignac number, because 680752009701 - 2⁷ = 680752009573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680752009703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37819556086 + ... + 37819556103.

Almost surely, 2^680752009701 is an apocalyptic number.

It is an amenable number.

680752009701 is a deficient number, since it is larger than the sum of its proper divisors (302556448769).

680752009701 is a wasteful number, since it uses less digits than its factorization.

680752009701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75639112195 (or 75639112192 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 680752009701 in words is "six hundred eighty billion, seven hundred fifty-two million, nine thousand, seven hundred one".