419479803649 has 4 divisors (see below), whose sum is σ = 422541700164. Its totient is φ = 416417907136.

The previous prime is 419479803641. The next prime is 419479803689. The reversal of 419479803649 is 946308974914.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 342847723024 + 76632080625 = 585532^2 + 276825^2 .

It is a cyclic number.

It is not a de Polignac number, because 419479803649 - 2³ = 419479803641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (419479803641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1530948052 + ... + 1530948325.

It is an arithmetic number, because the mean of its divisors is an integer number (105635425041).

Almost surely, 2^419479803649 is an apocalyptic number.

It is an amenable number.

419479803649 is a deficient number, since it is larger than the sum of its proper divisors (3061896515).

419479803649 is a wasteful number, since it uses less digits than its factorization.

419479803649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061896514.

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 419479803649 in words is "four hundred nineteen billion, four hundred seventy-nine million, eight hundred three thousand, six hundred forty-nine".