9906796538 has 16 divisors (see below), whose sum is σ = 14888784960. Its totient is φ = 4943879616.

The previous prime is 9906796519. The next prime is 9906796579. The reversal of 9906796538 is 8356976099.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3077906 + ... + 3081122.

It is an arithmetic number, because the mean of its divisors is an integer number (930549060).

Almost surely, 2^9906796538 is an apocalyptic number.

9906796538 is a deficient number, since it is larger than the sum of its proper divisors (4981988422).

9906796538 is a wasteful number, since it uses less digits than its factorization.

9906796538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The square root of 9906796538 is about 99532.8917393642. The cubic root of 9906796538 is about 2147.7204278167.

The spelling of 9906796538 in words is "nine billion, nine hundred six million, seven hundred ninety-six thousand, five hundred thirty-eight".