9992278159 has 4 divisors (see below), whose sum is σ = 9995090904. Its totient is φ = 9989465416.

The previous prime is 9992278151. The next prime is 9992278189. The reversal of 9992278159 is 9518722999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9992278159 - 2³ = 9992278151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9992278097 and 9992278106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9992278151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401037 + ... + 1408150.

It is an arithmetic number, because the mean of its divisors is an integer number (2498772726).

Almost surely, 2^9992278159 is an apocalyptic number.

9992278159 is a deficient number, since it is larger than the sum of its proper divisors (2812745).

9992278159 is a wasteful number, since it uses less digits than its factorization.

9992278159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812744.

The product of its digits is 7348320, while the sum is 61.

The square root of 9992278159 is about 99961.3833387674. The cubic root of 9992278159 is about 2153.8800071642.

The spelling of 9992278159 in words is "nine billion, nine hundred ninety-two million, two hundred seventy-eight thousand, one hundred fifty-nine".