426653356663 has 2 divisors, whose sum is σ = 426653356664. Its totient is φ = 426653356662.

The previous prime is 426653356603. The next prime is 426653356739. The reversal of 426653356663 is 366653356624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426653356663 - 2²¹ = 426651259511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426653356603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213326678331 + 213326678332.

It is an arithmetic number, because the mean of its divisors is an integer number (213326678332).

Almost surely, 2^426653356663 is an apocalyptic number.

426653356663 is a deficient number, since it is larger than the sum of its proper divisors (1).

426653356663 is an equidigital number, since it uses as much as digits as its factorization.

426653356663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41990400, while the sum is 55.

The spelling of 426653356663 in words is "four hundred twenty-six billion, six hundred fifty-three million, three hundred fifty-six thousand, six hundred sixty-three".