9067068721 has 4 divisors (see below), whose sum is σ = 9067387392. Its totient is φ = 9066750052.

The previous prime is 9067068701. The next prime is 9067068727. The reversal of 9067068721 is 1278607609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9067068721 - 2²⁵ = 9033514289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9067068727) 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, 111961 + ... + 175126.

It is an arithmetic number, because the mean of its divisors is an integer number (2266846848).

Almost surely, 2^9067068721 is an apocalyptic number.

It is an amenable number.

9067068721 is a deficient number, since it is larger than the sum of its proper divisors (318671).

9067068721 is a wasteful number, since it uses less digits than its factorization.

9067068721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318670.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 9067068721 is about 95221.1568980340. The cubic root of 9067068721 is about 2085.2380247633.

The spelling of 9067068721 in words is "nine billion, sixty-seven million, sixty-eight thousand, seven hundred twenty-one".