449156825669 has 4 divisors (see below), whose sum is σ = 449334290400. Its totient is φ = 448979360940.

The previous prime is 449156825653. The next prime is 449156825693. The reversal of 449156825669 is 966528651944.

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 449156825669 - 2⁴ = 449156825653 is a prime.

It is a super-2 number, since 2×449156825669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449156821669) 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, 88728569 + ... + 88733630.

It is an arithmetic number, because the mean of its divisors is an integer number (112333572600).

Almost surely, 2^449156825669 is an apocalyptic number.

It is an amenable number.

449156825669 is a deficient number, since it is larger than the sum of its proper divisors (177464731).

449156825669 is a wasteful number, since it uses less digits than its factorization.

449156825669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177464730.

The product of its digits is 111974400, while the sum is 65.

The spelling of 449156825669 in words is "four hundred forty-nine billion, one hundred fifty-six million, eight hundred twenty-five thousand, six hundred sixty-nine".