12045728451 has 8 divisors (see below), whose sum is σ = 16333191360. Its totient is φ = 7894375592.

The previous prime is 12045728449. The next prime is 12045728491. The reversal of 12045728451 is 15482754021.

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 12045728451 - 2¹ = 12045728449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12045728491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34027305 + ... + 34027658.

It is an arithmetic number, because the mean of its divisors is an integer number (2041648920).

Almost surely, 2^12045728451 is an apocalyptic number.

12045728451 is a deficient number, since it is larger than the sum of its proper divisors (4287462909).

12045728451 is an equidigital number, since it uses as much as digits as its factorization.

12045728451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68055025.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 12045728451 in words is "twelve billion, forty-five million, seven hundred twenty-eight thousand, four hundred fifty-one".