9906797529 has 16 divisors (see below), whose sum is σ = 14679520000. Its totient is φ = 6603279408.

The previous prime is 9906797491. The next prime is 9906797531. The reversal of 9906797529 is 9257976099.

It is a happy number.

It is not a de Polignac number, because 9906797529 - 2⁷ = 9906797401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9906797539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123312 + ... + 187134.

It is an arithmetic number, because the mean of its divisors is an integer number (917470000).

Almost surely, 2^9906797529 is an apocalyptic number.

It is an amenable number.

9906797529 is a deficient number, since it is larger than the sum of its proper divisors (4772722471).

9906797529 is a wasteful number, since it uses less digits than its factorization.

9906797529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69581 (or 69575 counting only the distinct ones).

The product of its (nonzero) digits is 19289340, while the sum is 63.

The square root of 9906797529 is about 99532.8967176179. The cubic root of 9906797529 is about 2147.7204994305.

The spelling of 9906797529 in words is "nine billion, nine hundred six million, seven hundred ninety-seven thousand, five hundred twenty-nine".