12027511859 has 4 divisors (see below), whose sum is σ = 13120922040. Its totient is φ = 10934101680.

The previous prime is 12027511817. The next prime is 12027511861. The reversal of 12027511859 is 95811572021.

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 12027511859 - 2²⁰ = 12026463283 is a prime.

It is a super-2 number, since 2×12027511859² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12027511259) 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, 546705074 + ... + 546705095.

It is an arithmetic number, because the mean of its divisors is an integer number (3280230510).

Almost surely, 2^12027511859 is an apocalyptic number.

12027511859 is a deficient number, since it is larger than the sum of its proper divisors (1093410181).

12027511859 is a wasteful number, since it uses less digits than its factorization.

12027511859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093410180.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 12027511859 in words is "twelve billion, twenty-seven million, five hundred eleven thousand, eight hundred fifty-nine".