12454136423445 has 16 divisors (see below), whose sum is σ = 20390028005952. Its totient is φ = 6487736183040.

The previous prime is 12454136423411. The next prime is 12454136423447. The reversal of 12454136423445 is 54432463145421.

It is not a de Polignac number, because 12454136423445 - 2⁸ = 12454136423189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12454136423394 and 12454136423403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12454136423447) 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 in 15 ways as a sum of consecutive naturals, for example, 9654368676 + ... + 9654369965.

It is an arithmetic number, because the mean of its divisors is an integer number (1274376750372).

Almost surely, 2^{12454136423445} is an apocalyptic number.

12454136423445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12454136423445 is a deficient number, since it is larger than the sum of its proper divisors (7935891582507).

12454136423445 is a wasteful number, since it uses less digits than its factorization.

12454136423445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19308738692.

The product of its digits is 5529600, while the sum is 48.

Adding to 12454136423445 its reverse (54432463145421), we get a palindrome (66886599568866).

The spelling of 12454136423445 in words is "twelve trillion, four hundred fifty-four billion, one hundred thirty-six million, four hundred twenty-three thousand, four hundred forty-five".