421707824471 has 2 divisors, whose sum is σ = 421707824472. Its totient is φ = 421707824470.

The previous prime is 421707824389. The next prime is 421707824497. The reversal of 421707824471 is 174428707124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421707824471 is a prime.

It is a super-3 number, since 3×421707824471³ (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 (421707824071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210853912235 + 210853912236.

It is an arithmetic number, because the mean of its divisors is an integer number (210853912236).

Almost surely, 2^421707824471 is an apocalyptic number.

421707824471 is a deficient number, since it is larger than the sum of its proper divisors (1).

421707824471 is an equidigital number, since it uses as much as digits as its factorization.

421707824471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 702464, while the sum is 47.

The spelling of 421707824471 in words is "four hundred twenty-one billion, seven hundred seven million, eight hundred twenty-four thousand, four hundred seventy-one".