9840729012 has 24 divisors (see below), whose sum is σ = 22963665312. Its totient is φ = 3279962400.

The previous prime is 9840728993. The next prime is 9840729053. The reversal of 9840729012 is 2109270489.

9840729012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9840729012² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150187 + ... + 205517.

It is an arithmetic number, because the mean of its divisors is an integer number (956819388).

Almost surely, 2^9840729012 is an apocalyptic number.

It is an amenable number.

9840729012 is an abundant number, since it is smaller than the sum of its proper divisors (13122936300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9840729012 is a wasteful number, since it uses less digits than its factorization.

9840729012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70159 (or 70157 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 9840729012 is about 99200.4486481790. The cubic root of 9840729012 is about 2142.9354576914.

The spelling of 9840729012 in words is "nine billion, eight hundred forty million, seven hundred twenty-nine thousand, twelve".