9928209149 has 8 divisors (see below), whose sum is σ = 10201513440. Its totient is φ = 9655166736.

The previous prime is 9928209127. The next prime is 9928209169. The reversal of 9928209149 is 9419028299.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9928209149 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 9928209149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928209119) 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, 12662 + ... + 141480.

It is an arithmetic number, because the mean of its divisors is an integer number (1275189180).

Almost surely, 2^9928209149 is an apocalyptic number.

It is an amenable number.

9928209149 is a deficient number, since it is larger than the sum of its proper divisors (273304291).

9928209149 is a wasteful number, since it uses less digits than its factorization.

9928209149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130939.

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 9928209149 is about 99640.3991812558. The cubic root of 9928209149 is about 2149.2666797080.

The spelling of 9928209149 in words is "nine billion, nine hundred twenty-eight million, two hundred nine thousand, one hundred forty-nine".