420204749719 has 2 divisors, whose sum is σ = 420204749720. Its totient is φ = 420204749718.

The previous prime is 420204749717. The next prime is 420204749749. The reversal of 420204749719 is 917947402024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420204749719 - 2¹ = 420204749717 is a prime.

It is a super-2 number, since 2×420204749719² (a number of 24 digits) contains 22 as substring.

Together with 420204749717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420204749711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210102374859 + 210102374860.

It is an arithmetic number, because the mean of its divisors is an integer number (210102374860).

Almost surely, 2^420204749719 is an apocalyptic number.

420204749719 is a deficient number, since it is larger than the sum of its proper divisors (1).

420204749719 is an equidigital number, since it uses as much as digits as its factorization.

420204749719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 420204749719 in words is "four hundred twenty billion, two hundred four million, seven hundred forty-nine thousand, seven hundred nineteen".