9709945707 has 16 divisors (see below), whose sum is σ = 16141208832. Its totient is φ = 5044127520.

The previous prime is 9709945681. The next prime is 9709945717. The reversal of 9709945707 is 7075499079.

It is not a de Polignac number, because 9709945707 - 2⁷ = 9709945579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9709945717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21016968 + ... + 21017429.

It is an arithmetic number, because the mean of its divisors is an integer number (1008825552).

Almost surely, 2^9709945707 is an apocalyptic number.

9709945707 is a deficient number, since it is larger than the sum of its proper divisors (6431263125).

9709945707 is a wasteful number, since it uses less digits than its factorization.

9709945707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42034418.

The product of its (nonzero) digits is 5000940, while the sum is 57.

The square root of 9709945707 is about 98539.0567592363. The cubic root of 9709945707 is about 2133.3998842330.

The spelling of 9709945707 in words is "nine billion, seven hundred nine million, nine hundred forty-five thousand, seven hundred seven".