28064767121 has 8 divisors (see below), whose sum is σ = 28543881600. Its totient is φ = 27585767440.

The previous prime is 28064767091. The next prime is 28064767127. The reversal of 28064767121 is 12176746082.

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

It is a cyclic number.

It is not a de Polignac number, because 28064767121 - 2³⁴ = 10884897937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28064767127) 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, 569960 + ... + 617238.

It is an arithmetic number, because the mean of its divisors is an integer number (3567985200).

Almost surely, 2^28064767121 is an apocalyptic number.

It is an amenable number.

28064767121 is a deficient number, since it is larger than the sum of its proper divisors (479114479).

28064767121 is a wasteful number, since it uses less digits than its factorization.

28064767121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57399.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 28064767121 in words is "twenty-eight billion, sixty-four million, seven hundred sixty-seven thousand, one hundred twenty-one".