419806154489 has 2 divisors, whose sum is σ = 419806154490. Its totient is φ = 419806154488.

The previous prime is 419806154437. The next prime is 419806154503. The reversal of 419806154489 is 984451608914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401554144489 + 18252010000 = 633683^2 + 135100^2 .

It is a cyclic number.

It is not a de Polignac number, because 419806154489 - 2⁸ = 419806154233 is a prime.

It is a super-2 number, since 2×419806154489² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (419806154689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209903077244 + 209903077245.

It is an arithmetic number, because the mean of its divisors is an integer number (209903077245).

Almost surely, 2^419806154489 is an apocalyptic number.

It is an amenable number.

419806154489 is a deficient number, since it is larger than the sum of its proper divisors (1).

419806154489 is an equidigital number, since it uses as much as digits as its factorization.

419806154489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 419806154489 in words is "four hundred nineteen billion, eight hundred six million, one hundred fifty-four thousand, four hundred eighty-nine".