426661553036393 has 2 divisors, whose sum is σ = 426661553036394. Its totient is φ = 426661553036392.

The previous prime is 426661553036353. The next prime is 426661553036429. The reversal of 426661553036393 is 393630355166624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 416547200422144 + 10114352614249 = 20409488^2 + 3180307^2 .

It is a cyclic number.

It is not a de Polignac number, because 426661553036393 - 2¹⁴ = 426661553020009 is a prime.

It is not a weakly prime, because it can be changed into another prime (426661553036353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213330776518196 + 213330776518197.

It is an arithmetic number, because the mean of its divisors is an integer number (213330776518197).

Almost surely, 2^{426661553036393} is an apocalyptic number.

It is an amenable number.

426661553036393 is a deficient number, since it is larger than the sum of its proper divisors (1).

426661553036393 is an equidigital number, since it uses as much as digits as its factorization.

426661553036393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188956800, while the sum is 62.

The spelling of 426661553036393 in words is "four hundred twenty-six trillion, six hundred sixty-one billion, five hundred fifty-three million, thirty-six thousand, three hundred ninety-three".