12604551653 has 2 divisors, whose sum is σ = 12604551654. Its totient is φ = 12604551652.

The previous prime is 12604551623. The next prime is 12604551691. The reversal of 12604551653 is 35615540621.

It is an a-pointer prime, because the next prime (12604551691) can be obtained adding 12604551653 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8772570244 + 3831981409 = 93662^2 + 61903^2 .

It is a cyclic number.

It is not a de Polignac number, because 12604551653 - 2¹⁶ = 12604486117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12604551623) 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, 6302275826 + 6302275827.

It is an arithmetic number, because the mean of its divisors is an integer number (6302275827).

Almost surely, 2^12604551653 is an apocalyptic number.

It is an amenable number.

12604551653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604551653 is an equidigital number, since it uses as much as digits as its factorization.

12604551653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 12604551653 in words is "twelve billion, six hundred four million, five hundred fifty-one thousand, six hundred fifty-three".