9729357949 has 12 divisors (see below), whose sum is σ = 10706080000. Its totient is φ = 8816525784.

The previous prime is 9729357917. The next prime is 9729357961. The reversal of 9729357949 is 9497539279.

It is not a de Polignac number, because 9729357949 - 2⁵ = 9729357917 is a prime.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729352949) 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, 473949 + ... + 494050.

Almost surely, 2^9729357949 is an apocalyptic number.

It is an amenable number.

9729357949 is a deficient number, since it is larger than the sum of its proper divisors (976722051).

9729357949 is a wasteful number, since it uses less digits than its factorization.

9729357949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968064 (or 968041 counting only the distinct ones).

The product of its digits is 38578680, while the sum is 64.

The square root of 9729357949 is about 98637.5078203013. The cubic root of 9729357949 is about 2134.8206442176.

The spelling of 9729357949 in words is "nine billion, seven hundred twenty-nine million, three hundred fifty-seven thousand, nine hundred forty-nine".