12464554657 has 16 divisors (see below), whose sum is σ = 13061157120. Its totient is φ = 11872631232.

The previous prime is 12464554639. The next prime is 12464554723. The reversal of 12464554657 is 75645546421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12464554657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12464554657.

It is not an unprimeable number, because it can be changed into a prime (12464554637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7804183 + ... + 7805779.

It is an arithmetic number, because the mean of its divisors is an integer number (816322320).

Almost surely, 2^12464554657 is an apocalyptic number.

It is an amenable number.

12464554657 is a deficient number, since it is larger than the sum of its proper divisors (596602463).

12464554657 is a wasteful number, since it uses less digits than its factorization.

12464554657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832.

The product of its digits is 4032000, while the sum is 49.

The spelling of 12464554657 in words is "twelve billion, four hundred sixty-four million, five hundred fifty-four thousand, six hundred fifty-seven".