9707751520081 has 6 divisors (see below), whose sum is σ = 10148178810770. Its totient is φ = 9285675366528.

The previous prime is 9707751519979. The next prime is 9707751520109. The reversal of 9707751520081 is 1800251577079.

It can be written as a sum of positive squares in only one way, i.e., 7746113177856 + 1961638342225 = 2783184^2 + 1400585^2 .

It is not a de Polignac number, because 9707751520081 - 2¹³ = 9707751511889 is a prime.

It is a super-2 number, since 2×9707751520081² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9707751500081) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9175568016 + ... + 9175569073.

Almost surely, 2^{9707751520081} is an apocalyptic number.

It is an amenable number.

9707751520081 is a deficient number, since it is larger than the sum of its proper divisors (440427290689).

9707751520081 is a wasteful number, since it uses less digits than its factorization.

9707751520081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18351137135 (or 18351137112 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 52.

The spelling of 9707751520081 in words is "nine trillion, seven hundred seven billion, seven hundred fifty-one million, five hundred twenty thousand, eighty-one".