12454043546 has 24 divisors (see below), whose sum is σ = 21754838880. Its totient is φ = 5331600792.

The previous prime is 12454043513. The next prime is 12454043551. The reversal of 12454043546 is 64534045421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20921 + ... + 159203.

It is an arithmetic number, because the mean of its divisors is an integer number (906451620).

Almost surely, 2^12454043546 is an apocalyptic number.

12454043546 is a deficient number, since it is larger than the sum of its proper divisors (9300795334).

12454043546 is a wasteful number, since it uses less digits than its factorization.

12454043546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139218 (or 139211 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 12454043546 its reverse (64534045421), we get a palindrome (76988088967).

The spelling of 12454043546 in words is "twelve billion, four hundred fifty-four million, forty-three thousand, five hundred forty-six".