12618451457 has 4 divisors (see below), whose sum is σ = 12630061056. Its totient is φ = 12606841860.

The previous prime is 12618451453. The next prime is 12618451459. The reversal of 12618451457 is 75415481621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12618451457 - 2² = 12618451453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12618451453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5803169 + ... + 5805342.

It is an arithmetic number, because the mean of its divisors is an integer number (3157515264).

Almost surely, 2^12618451457 is an apocalyptic number.

It is an amenable number.

12618451457 is a deficient number, since it is larger than the sum of its proper divisors (11609599).

12618451457 is a wasteful number, since it uses less digits than its factorization.

12618451457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11609598.

The product of its digits is 268800, while the sum is 44.

The spelling of 12618451457 in words is "twelve billion, six hundred eighteen million, four hundred fifty-one thousand, four hundred fifty-seven".