449663148478 has 16 divisors (see below), whose sum is σ = 677392890624. Its totient is φ = 223867246680.

The previous prime is 449663148449. The next prime is 449663148491. The reversal of 449663148478 is 874841366944.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89451 + ... + 952537.

It is an arithmetic number, because the mean of its divisors is an integer number (42337055664).

Almost surely, 2^449663148478 is an apocalyptic number.

449663148478 is a deficient number, since it is larger than the sum of its proper divisors (227729742146).

449663148478 is a wasteful number, since it uses less digits than its factorization.

449663148478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864207.

The product of its digits is 111476736, while the sum is 64.

The spelling of 449663148478 in words is "four hundred forty-nine billion, six hundred sixty-three million, one hundred forty-eight thousand, four hundred seventy-eight".