12045737573 has 4 divisors (see below), whose sum is σ = 12046310208. Its totient is φ = 12045164940.

The previous prime is 12045737567. The next prime is 12045737581. The reversal of 12045737573 is 37573754021.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37573754021 = 10331 ⋅3636991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045737573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12005737573) 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, 253511 + ... + 297252.

It is an arithmetic number, because the mean of its divisors is an integer number (3011577552).

Almost surely, 2^12045737573 is an apocalyptic number.

It is an amenable number.

12045737573 is a deficient number, since it is larger than the sum of its proper divisors (572635).

12045737573 is an equidigital number, since it uses as much as digits as its factorization.

12045737573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572634.

The product of its (nonzero) digits is 617400, while the sum is 44.

The spelling of 12045737573 in words is "twelve billion, forty-five million, seven hundred thirty-seven thousand, five hundred seventy-three".