12454043534 has 4 divisors (see below), whose sum is σ = 18681065304. Its totient is φ = 6227021766.

The previous prime is 12454043513. The next prime is 12454043551. The reversal of 12454043534 is 43534045421.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12454043494 and 12454043503.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3113510882 + ... + 3113510885.

It is an arithmetic number, because the mean of its divisors is an integer number (4670266326).

Almost surely, 2^12454043534 is an apocalyptic number.

12454043534 is a deficient number, since it is larger than the sum of its proper divisors (6227021770).

12454043534 is an equidigital number, since it uses as much as digits as its factorization.

12454043534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227021769.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 12454043534 its reverse (43534045421), we get a palindrome (55988088955).

The spelling of 12454043534 in words is "twelve billion, four hundred fifty-four million, forty-three thousand, five hundred thirty-four".