12154364443 has 16 divisors (see below), whose sum is σ = 13562367840. Its totient is φ = 10821118464.

The previous prime is 12154364423. The next prime is 12154364449. The reversal of 12154364443 is 34446345121.

12154364443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12154364443 - 2¹³ = 12154356251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12154364449) 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 15 ways as a sum of consecutive naturals, for example, 108846 + ... + 190147.

It is an arithmetic number, because the mean of its divisors is an integer number (847647990).

Almost surely, 2^12154364443 is an apocalyptic number.

12154364443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12154364443 is a deficient number, since it is larger than the sum of its proper divisors (1408003397).

12154364443 is a wasteful number, since it uses less digits than its factorization.

12154364443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299118.

The product of its digits is 138240, while the sum is 37.

The spelling of 12154364443 in words is "twelve billion, one hundred fifty-four million, three hundred sixty-four thousand, four hundred forty-three".