427432899653 has 2 divisors, whose sum is σ = 427432899654. Its totient is φ = 427432899652.

The previous prime is 427432899589. The next prime is 427432899659. The reversal of 427432899653 is 356998234724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 397805195524 + 29627704129 = 630718^2 + 172127^2 .

It is a cyclic number.

It is not a de Polignac number, because 427432899653 - 2⁶ = 427432899589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427432899659) 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, 213716449826 + 213716449827.

It is an arithmetic number, because the mean of its divisors is an integer number (213716449827).

Almost surely, 2^427432899653 is an apocalyptic number.

It is an amenable number.

427432899653 is a deficient number, since it is larger than the sum of its proper divisors (1).

427432899653 is an equidigital number, since it uses as much as digits as its factorization.

427432899653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78382080, while the sum is 62.

The spelling of 427432899653 in words is "four hundred twenty-seven billion, four hundred thirty-two million, eight hundred ninety-nine thousand, six hundred fifty-three".