12045861740571 has 4 divisors (see below), whose sum is σ = 16061148987432. Its totient is φ = 8030574493712.

The previous prime is 12045861740551. The next prime is 12045861740593. The reversal of 12045861740571 is 17504716854021.

12045861740571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045861740571 is a prime.

It is a super-3 number, since 3×12045861740571³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12045861740501) 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, 2007643623426 + ... + 2007643623431.

It is an arithmetic number, because the mean of its divisors is an integer number (4015287246858).

Almost surely, 2^{12045861740571} is an apocalyptic number.

12045861740571 is a deficient number, since it is larger than the sum of its proper divisors (4015287246861).

12045861740571 is an equidigital number, since it uses as much as digits as its factorization.

12045861740571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015287246860.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 12045861740571 in words is "twelve trillion, forty-five billion, eight hundred sixty-one million, seven hundred forty thousand, five hundred seventy-one".