425665034688653 has 2 divisors, whose sum is σ = 425665034688654. Its totient is φ = 425665034688652.

The previous prime is 425665034688613. The next prime is 425665034688671. The reversal of 425665034688653 is 356886430566524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423539775126724 + 2125259561929 = 20580082^2 + 1457827^2 .

It is a cyclic number.

It is not a de Polignac number, because 425665034688653 - 2²⁴ = 425665017911437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425665034688613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212832517344326 + 212832517344327.

It is an arithmetic number, because the mean of its divisors is an integer number (212832517344327).

Almost surely, 2^{425665034688653} is an apocalyptic number.

It is an amenable number.

425665034688653 is a deficient number, since it is larger than the sum of its proper divisors (1).

425665034688653 is an equidigital number, since it uses as much as digits as its factorization.

425665034688653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984000, while the sum is 71.

The spelling of 425665034688653 in words is "four hundred twenty-five trillion, six hundred sixty-five billion, thirty-four million, six hundred eighty-eight thousand, six hundred fifty-three".