12045575405 has 8 divisors (see below), whose sum is σ = 14699685600. Its totient is φ = 9473130256.

The previous prime is 12045575393. The next prime is 12045575453. The reversal of 12045575405 is 50457554021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12045575405 - 2¹⁸ = 12045313261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20415935 + ... + 20416524.

It is an arithmetic number, because the mean of its divisors is an integer number (1837460700).

Almost surely, 2^12045575405 is an apocalyptic number.

It is an amenable number.

12045575405 is a deficient number, since it is larger than the sum of its proper divisors (2654110195).

12045575405 is an equidigital number, since it uses as much as digits as its factorization.

12045575405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40832523.

The product of its (nonzero) digits is 140000, while the sum is 38.

The spelling of 12045575405 in words is "twelve billion, forty-five million, five hundred seventy-five thousand, four hundred five".