842206302449 has 4 divisors (see below), whose sum is σ = 842220026736. Its totient is φ = 842192578164.

The previous prime is 842206302439. The next prime is 842206302491. The reversal of 842206302449 is 944203602248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 842206302449 - 2⁸ = 842206302193 is a prime.

It is a super-2 number, since 2×842206302449² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842206302439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6769679 + ... + 6892964.

It is an arithmetic number, because the mean of its divisors is an integer number (210555006684).

Almost surely, 2^842206302449 is an apocalyptic number.

It is an amenable number.

842206302449 is a deficient number, since it is larger than the sum of its proper divisors (13724287).

842206302449 is a wasteful number, since it uses less digits than its factorization.

842206302449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13724286.

The product of its (nonzero) digits is 663552, while the sum is 44.

The spelling of 842206302449 in words is "eight hundred forty-two billion, two hundred six million, three hundred two thousand, four hundred forty-nine".