9840729053 has 2 divisors, whose sum is σ = 9840729054. Its totient is φ = 9840729052.

The previous prime is 9840728993. The next prime is 9840729079. The reversal of 9840729053 is 3509270489.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9195467449 + 645261604 = 95893^2 + 25402^2 .

It is a cyclic number.

It is not a de Polignac number, because 9840729053 - 2⁸ = 9840728797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9840728989 and 9840729007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9840729553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4920364526 + 4920364527.

It is an arithmetic number, because the mean of its divisors is an integer number (4920364527).

Almost surely, 2^9840729053 is an apocalyptic number.

It is an amenable number.

9840729053 is a deficient number, since it is larger than the sum of its proper divisors (1).

9840729053 is an equidigital number, since it uses as much as digits as its factorization.

9840729053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 9840729053 is about 99200.4488548313. The cubic root of 9840729053 is about 2142.9354606675.

The spelling of 9840729053 in words is "nine billion, eight hundred forty million, seven hundred twenty-nine thousand, fifty-three".