12028894069 has 4 divisors (see below), whose sum is σ = 12036552480. Its totient is φ = 12021235660.

The previous prime is 12028894013. The next prime is 12028894081. The reversal of 12028894069 is 96049882021.

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 12028894069 - 2²⁵ = 11995339637 is a prime.

It is a super-2 number, since 2×12028894069² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12028892069) 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, 3826849 + ... + 3829990.

It is an arithmetic number, because the mean of its divisors is an integer number (3009138120).

Almost surely, 2^12028894069 is an apocalyptic number.

It is an amenable number.

12028894069 is a deficient number, since it is larger than the sum of its proper divisors (7658411).

12028894069 is an equidigital number, since it uses as much as digits as its factorization.

12028894069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658410.

The product of its (nonzero) digits is 497664, while the sum is 49.

The spelling of 12028894069 in words is "twelve billion, twenty-eight million, eight hundred ninety-four thousand, sixty-nine".