449394949493 has 16 divisors (see below), whose sum is σ = 548887964544. Its totient is φ = 359148894720.

The previous prime is 449394949483. The next prime is 449394949499. The reversal of 449394949493 is 394949493944.

It is not a de Polignac number, because 449394949493 - 2¹⁶ = 449394883957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449394949499) 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 15 ways as a sum of consecutive naturals, for example, 17634128 + ... + 17659593.

It is an arithmetic number, because the mean of its divisors is an integer number (34305497784).

Almost surely, 2^449394949493 is an apocalyptic number.

It is an amenable number.

449394949493 is a deficient number, since it is larger than the sum of its proper divisors (99493015051).

449394949493 is a wasteful number, since it uses less digits than its factorization.

449394949493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35293852.

The product of its digits is 544195584, while the sum is 71.

The spelling of 449394949493 in words is "four hundred forty-nine billion, three hundred ninety-four million, nine hundred forty-nine thousand, four hundred ninety-three".