420468842663 has 2 divisors, whose sum is σ = 420468842664. Its totient is φ = 420468842662.

The previous prime is 420468842657. The next prime is 420468842701. The reversal of 420468842663 is 366248864024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420468842663 - 2⁸ = 420468842407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420468842063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210234421331 + 210234421332.

It is an arithmetic number, because the mean of its divisors is an integer number (210234421332).

Almost surely, 2^420468842663 is an apocalyptic number.

420468842663 is a deficient number, since it is larger than the sum of its proper divisors (1).

420468842663 is an equidigital number, since it uses as much as digits as its factorization.

420468842663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10616832, while the sum is 53.

The spelling of 420468842663 in words is "four hundred twenty billion, four hundred sixty-eight million, eight hundred forty-two thousand, six hundred sixty-three".