12027511873 has 4 divisors (see below), whose sum is σ = 12952705108. Its totient is φ = 11102318640.

The previous prime is 12027511861. The next prime is 12027511919. The reversal of 12027511873 is 37811572021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37811572021 = 1709 ⋅22124969.

It can be written as a sum of positive squares in 2 ways, for example, as 6555655089 + 5471856784 = 80967^2 + 73972^2 .

It is a cyclic number.

It is not a de Polignac number, because 12027511873 - 2⁹ = 12027511361 is a prime.

It is a super-2 number, since 2×12027511873² (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 (12027511813) 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, 462596598 + ... + 462596623.

It is an arithmetic number, because the mean of its divisors is an integer number (3238176277).

Almost surely, 2^12027511873 is an apocalyptic number.

12027511873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12027511873 is a deficient number, since it is larger than the sum of its proper divisors (925193235).

12027511873 is an equidigital number, since it uses as much as digits as its factorization.

12027511873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925193234.

The product of its (nonzero) digits is 23520, while the sum is 37.

The spelling of 12027511873 in words is "twelve billion, twenty-seven million, five hundred eleven thousand, eight hundred seventy-three".