9840729011 has 8 divisors (see below), whose sum is σ = 10187782464. Its totient is φ = 9499412160.

The previous prime is 9840728993. The next prime is 9840729053. The reversal of 9840729011 is 1109270489.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9840729011 - 2²⁶ = 9773620147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9840729011.

It is not an unprimeable number, because it can be changed into a prime (9840729211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430660 + ... + 1437521.

It is an arithmetic number, because the mean of its divisors is an integer number (1273472808).

Almost surely, 2^9840729011 is an apocalyptic number.

9840729011 is a deficient number, since it is larger than the sum of its proper divisors (347053453).

9840729011 is a wasteful number, since it uses less digits than its factorization.

9840729011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2868301.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 9840729011 is about 99200.4486431387. The cubic root of 9840729011 is about 2142.9354576189.

The spelling of 9840729011 in words is "nine billion, eight hundred forty million, seven hundred twenty-nine thousand, eleven".