449170777479 has 4 divisors (see below), whose sum is σ = 598894369976. Its totient is φ = 299447184984.

The previous prime is 449170777457. The next prime is 449170777487. The reversal of 449170777479 is 974777071944.

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

It is not a de Polignac number, because 449170777479 - 2¹⁶ = 449170711943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449170775479) 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, 74861796244 + ... + 74861796249.

It is an arithmetic number, because the mean of its divisors is an integer number (149723592494).

Almost surely, 2^449170777479 is an apocalyptic number.

449170777479 is a deficient number, since it is larger than the sum of its proper divisors (149723592497).

449170777479 is a wasteful number, since it uses less digits than its factorization.

449170777479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149723592496.

The product of its (nonzero) digits is 87127488, while the sum is 66.

The spelling of 449170777479 in words is "four hundred forty-nine billion, one hundred seventy million, seven hundred seventy-seven thousand, four hundred seventy-nine".