4420404202009 has 2 divisors, whose sum is σ = 4420404202010. Its totient is φ = 4420404202008.

The previous prime is 4420404202007. The next prime is 4420404202069. The reversal of 4420404202009 is 9002024040244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4412532963609 + 7871238400 = 2100603^2 + 88720^2 .

It is a cyclic number.

It is not a de Polignac number, because 4420404202009 - 2¹ = 4420404202007 is a prime.

Together with 4420404202007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4420404202001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210202101004 + 2210202101005.

It is an arithmetic number, because the mean of its divisors is an integer number (2210202101005).

Almost surely, 2^{4420404202009} is an apocalyptic number.

It is an amenable number.

4420404202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4420404202009 is an equidigital number, since it uses as much as digits as its factorization.

4420404202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The spelling of 4420404202009 in words is "four trillion, four hundred twenty billion, four hundred four million, two hundred two thousand, nine".