12454043512 has 8 divisors (see below), whose sum is σ = 23351331600. Its totient is φ = 6227021752.

The previous prime is 12454043507. The next prime is 12454043513. The reversal of 12454043512 is 21534045421.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454043513) by changing a digit.

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 as a sum of consecutive naturals, namely, 778377712 + ... + 778377727.

It is an arithmetic number, because the mean of its divisors is an integer number (2918916450).

Almost surely, 2^12454043512 is an apocalyptic number.

It is an amenable number.

12454043512 is a deficient number, since it is larger than the sum of its proper divisors (10897288088).

12454043512 is a wasteful number, since it uses less digits than its factorization.

12454043512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556755445 (or 1556755441 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12454043512 its reverse (21534045421), we get a palindrome (33988088933).

The spelling of 12454043512 in words is "twelve billion, four hundred fifty-four million, forty-three thousand, five hundred twelve".