421433466709 has 2 divisors, whose sum is σ = 421433466710. Its totient is φ = 421433466708.

The previous prime is 421433466683. The next prime is 421433466721. The reversal of 421433466709 is 907664334124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324523908900 + 96909557809 = 569670^2 + 311303^2 .

It is a cyclic number.

It is not a de Polignac number, because 421433466709 - 2⁷ = 421433466581 is a prime.

It is a super-2 number, since 2×421433466709² (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 (421433466799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210716733354 + 210716733355.

It is an arithmetic number, because the mean of its divisors is an integer number (210716733355).

Almost surely, 2^421433466709 is an apocalyptic number.

It is an amenable number.

421433466709 is a deficient number, since it is larger than the sum of its proper divisors (1).

421433466709 is an equidigital number, since it uses as much as digits as its factorization.

421433466709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 49.

The spelling of 421433466709 in words is "four hundred twenty-one billion, four hundred thirty-three million, four hundred sixty-six thousand, seven hundred nine".