12028636619 has 4 divisors (see below), whose sum is σ = 12353734944. Its totient is φ = 11703538296.

The previous prime is 12028636589. The next prime is 12028636657. The reversal of 12028636619 is 91663682021.

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 12028636619 - 2⁸ = 12028636363 is a prime.

It is a super-2 number, since 2×12028636619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12028636619.

It is not an unprimeable number, because it can be changed into a prime (12028636699) 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, 162549107 + ... + 162549180.

It is an arithmetic number, because the mean of its divisors is an integer number (3088433736).

Almost surely, 2^12028636619 is an apocalyptic number.

12028636619 is a deficient number, since it is larger than the sum of its proper divisors (325098325).

12028636619 is an equidigital number, since it uses as much as digits as its factorization.

12028636619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325098324.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 12028636619 in words is "twelve billion, twenty-eight million, six hundred thirty-six thousand, six hundred nineteen".