9780680753 has 4 divisors (see below), whose sum is σ = 9780891648. Its totient is φ = 9780469860.

The previous prime is 9780680743. The next prime is 9780680773. The reversal of 9780680753 is 3570860879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3570860879 = 419 ⋅8522341.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9780680753 is a prime.

It is a super-3 number, since 3×9780680753³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9780680695 and 9780680704.

It is not an unprimeable number, because it can be changed into a prime (9780680743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153 + ... + 139878.

It is an arithmetic number, because the mean of its divisors is an integer number (2445222912).

Almost surely, 2^9780680753 is an apocalyptic number.

It is an amenable number.

9780680753 is a deficient number, since it is larger than the sum of its proper divisors (210895).

9780680753 is a wasteful number, since it uses less digits than its factorization.

9780680753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210894.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 9780680753 is about 98897.3242964642. The cubic root of 9780680753 is about 2138.5678216184.

The spelling of 9780680753 in words is "nine billion, seven hundred eighty million, six hundred eighty thousand, seven hundred fifty-three".