9814912709 has 12 divisors (see below), whose sum is σ = 11422171404. Its totient is φ = 8409227904.

The previous prime is 9814912693. The next prime is 9814912717. The reversal of 9814912709 is 9072194189.

It can be written as a sum of positive squares in 2 ways, for example, as 4174452100 + 5640460609 = 64610^2 + 75103^2 .

It is not a de Polignac number, because 9814912709 - 2⁴ = 9814912693 is a prime.

It is a super-2 number, since 2×9814912709² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9814911709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78317 + ... + 160509.

It is an arithmetic number, because the mean of its divisors is an integer number (951847617).

Almost surely, 2^9814912709 is an apocalyptic number.

It is an amenable number.

9814912709 is a deficient number, since it is larger than the sum of its proper divisors (1607258695).

9814912709 is a wasteful number, since it uses less digits than its factorization.

9814912709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84644 (or 84637 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 9814912709 is about 99070.2412886938. The cubic root of 9814912709 is about 2141.0598812061.

The spelling of 9814912709 in words is "nine billion, eight hundred fourteen million, nine hundred twelve thousand, seven hundred nine".