12147455751 has 4 divisors (see below), whose sum is σ = 16196607672. Its totient is φ = 8098303832.

The previous prime is 12147455693. The next prime is 12147455783. The reversal of 12147455751 is 15755474121.

12147455751 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 not a de Polignac number, because 12147455751 - 2⁹ = 12147455239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147450751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024575956 + ... + 2024575961.

It is an arithmetic number, because the mean of its divisors is an integer number (4049151918).

Almost surely, 2^12147455751 is an apocalyptic number.

12147455751 is a deficient number, since it is larger than the sum of its proper divisors (4049151921).

12147455751 is an equidigital number, since it uses as much as digits as its factorization.

12147455751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4049151920.

The product of its digits is 196000, while the sum is 42.

The spelling of 12147455751 in words is "twelve billion, one hundred forty-seven million, four hundred fifty-five thousand, seven hundred fifty-one".