421293781463 has 2 divisors, whose sum is σ = 421293781464. Its totient is φ = 421293781462.

The previous prime is 421293781451. The next prime is 421293781481. The reversal of 421293781463 is 364187392124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421293781463 - 2⁶ = 421293781399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421293711463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210646890731 + 210646890732.

It is an arithmetic number, because the mean of its divisors is an integer number (210646890732).

Almost surely, 2^421293781463 is an apocalyptic number.

421293781463 is a deficient number, since it is larger than the sum of its proper divisors (1).

421293781463 is an equidigital number, since it uses as much as digits as its factorization.

421293781463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The spelling of 421293781463 in words is "four hundred twenty-one billion, two hundred ninety-three million, seven hundred eighty-one thousand, four hundred sixty-three".