9072867779 has 4 divisors (see below), whose sum is σ = 9208283784. Its totient is φ = 8937451776.

The previous prime is 9072867731. The next prime is 9072867809. The reversal of 9072867779 is 9777682709.

9072867779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 9072867779 - 2²⁸ = 8804432323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9072867179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67707902 + ... + 67708035.

It is an arithmetic number, because the mean of its divisors is an integer number (2302070946).

Almost surely, 2^9072867779 is an apocalyptic number.

9072867779 is a deficient number, since it is larger than the sum of its proper divisors (135416005).

9072867779 is a wasteful number, since it uses less digits than its factorization.

9072867779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135416004.

The product of its (nonzero) digits is 18670176, while the sum is 62.

The square root of 9072867779 is about 95251.6025009553. The cubic root of 9072867779 is about 2085.6824844352.

The spelling of 9072867779 in words is "nine billion, seventy-two million, eight hundred sixty-seven thousand, seven hundred seventy-nine".