12642026653 has 2 divisors, whose sum is σ = 12642026654. Its totient is φ = 12642026652.

The previous prime is 12642026609. The next prime is 12642026731. The reversal of 12642026653 is 35662024621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12639830329 + 2196324 = 112427^2 + 1482^2 .

It is a cyclic number.

It is not a de Polignac number, because 12642026653 - 2¹³ = 12642018461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12642006653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6321013326 + 6321013327.

It is an arithmetic number, because the mean of its divisors is an integer number (6321013327).

Almost surely, 2^12642026653 is an apocalyptic number.

It is an amenable number.

12642026653 is a deficient number, since it is larger than the sum of its proper divisors (1).

12642026653 is an equidigital number, since it uses as much as digits as its factorization.

12642026653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 12642026653 in words is "twelve billion, six hundred forty-two million, twenty-six thousand, six hundred fifty-three".