420331812463 has 2 divisors, whose sum is σ = 420331812464. Its totient is φ = 420331812462.

The previous prime is 420331812451. The next prime is 420331812473. The reversal of 420331812463 is 364218133024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420331812463 is a prime.

It is a super-3 number, since 3×420331812463³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420331812473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210165906231 + 210165906232.

It is an arithmetic number, because the mean of its divisors is an integer number (210165906232).

Almost surely, 2^420331812463 is an apocalyptic number.

420331812463 is a deficient number, since it is larger than the sum of its proper divisors (1).

420331812463 is an equidigital number, since it uses as much as digits as its factorization.

420331812463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 420331812463 its reverse (364218133024), we get a palindrome (784549945487).

The spelling of 420331812463 in words is "four hundred twenty billion, three hundred thirty-one million, eight hundred twelve thousand, four hundred sixty-three".