421568127863 has 4 divisors (see below), whose sum is σ = 421575324528. Its totient is φ = 421560931200.

The previous prime is 421568127823. The next prime is 421568127887. The reversal of 421568127863 is 368721865124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421568127863 - 2³⁴ = 404388258679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421568127823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3509738 + ... + 3627863.

It is an arithmetic number, because the mean of its divisors is an integer number (105393831132).

Almost surely, 2^421568127863 is an apocalyptic number.

421568127863 is a deficient number, since it is larger than the sum of its proper divisors (7196665).

421568127863 is an equidigital number, since it uses as much as digits as its factorization.

421568127863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196664.

The product of its digits is 3870720, while the sum is 53.

The spelling of 421568127863 in words is "four hundred twenty-one billion, five hundred sixty-eight million, one hundred twenty-seven thousand, eight hundred sixty-three".