9686749609 has 4 divisors (see below), whose sum is σ = 9686946640. Its totient is φ = 9686552580.

The previous prime is 9686749561. The next prime is 9686749619. The reversal of 9686749609 is 9069476869.

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.

It is a cyclic number.

It is not a de Polignac number, because 9686749609 - 2⁹ = 9686749097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9686749619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42814 + ... + 145624.

It is an arithmetic number, because the mean of its divisors is an integer number (2421736660).

Almost surely, 2^9686749609 is an apocalyptic number.

It is an amenable number.

9686749609 is a deficient number, since it is larger than the sum of its proper divisors (197031).

9686749609 is a wasteful number, since it uses less digits than its factorization.

9686749609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197030.

The product of its (nonzero) digits is 35271936, while the sum is 64.

The square root of 9686749609 is about 98421.2863612339. The cubic root of 9686749609 is about 2131.6997026933.

The spelling of 9686749609 in words is "nine billion, six hundred eighty-six million, seven hundred forty-nine thousand, six hundred nine".