426661553036263 has 2 divisors, whose sum is σ = 426661553036264. Its totient is φ = 426661553036262.

The previous prime is 426661553036221. The next prime is 426661553036353. The reversal of 426661553036263 is 362630355166624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426661553036263 - 2²⁵ = 426661519481831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426661553036198 and 426661553036207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426661553039263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213330776518131 + 213330776518132.

It is an arithmetic number, because the mean of its divisors is an integer number (213330776518132).

Almost surely, 2^{426661553036263} is an apocalyptic number.

426661553036263 is a deficient number, since it is larger than the sum of its proper divisors (1).

426661553036263 is an equidigital number, since it uses as much as digits as its factorization.

426661553036263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 83980800, while the sum is 58.

The spelling of 426661553036263 in words is "four hundred twenty-six trillion, six hundred sixty-one billion, five hundred fifty-three million, thirty-six thousand, two hundred sixty-three".