9729618316 has 12 divisors (see below), whose sum is σ = 18574725960. Its totient is φ = 4422553760.

The previous prime is 9729618251. The next prime is 9729618317. The reversal of 9729618316 is 6138169279.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9729618317) 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, 110563801 + ... + 110563888.

It is an arithmetic number, because the mean of its divisors is an integer number (1547893830).

Almost surely, 2^9729618316 is an apocalyptic number.

It is an amenable number.

9729618316 is a deficient number, since it is larger than the sum of its proper divisors (8845107644).

9729618316 is a wasteful number, since it uses less digits than its factorization.

9729618316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221127704 (or 221127702 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 9729618316 is about 98638.8276288805. The cubic root of 9729618316 is about 2134.8396873340.

The spelling of 9729618316 in words is "nine billion, seven hundred twenty-nine million, six hundred eighteen thousand, three hundred sixteen".