449664825838 has 8 divisors (see below), whose sum is σ = 681450818832. Its totient is φ = 222514552896.

The previous prime is 449664825803. The next prime is 449664825851. The reversal of 449664825838 is 838528466944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158929770 + ... + 1158930157.

It is an arithmetic number, because the mean of its divisors is an integer number (85181352354).

Almost surely, 2^449664825838 is an apocalyptic number.

449664825838 is a deficient number, since it is larger than the sum of its proper divisors (231785992994).

449664825838 is a wasteful number, since it uses less digits than its factorization.

449664825838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317860026.

The product of its digits is 318504960, while the sum is 67.

The spelling of 449664825838 in words is "four hundred forty-nine billion, six hundred sixty-four million, eight hundred twenty-five thousand, eight hundred thirty-eight".