421034705863 has 2 divisors, whose sum is σ = 421034705864. Its totient is φ = 421034705862.

The previous prime is 421034705849. The next prime is 421034705893. The reversal of 421034705863 is 368507430124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421034705863 is a prime.

It is a super-2 number, since 2×421034705863² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421034705803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210517352931 + 210517352932.

It is an arithmetic number, because the mean of its divisors is an integer number (210517352932).

Almost surely, 2^421034705863 is an apocalyptic number.

421034705863 is a deficient number, since it is larger than the sum of its proper divisors (1).

421034705863 is an equidigital number, since it uses as much as digits as its factorization.

421034705863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 421034705863 in words is "four hundred twenty-one billion, thirty-four million, seven hundred five thousand, eight hundred sixty-three".