449497945672 has 32 divisors (see below), whose sum is σ = 843913095480. Its totient is φ = 224454643200.

The previous prime is 449497945613. The next prime is 449497945703. The reversal of 449497945672 is 276549794944.

It can be written as a sum of positive squares in 4 ways, for example, as 65303758116 + 384194187556 = 255546^2 + 619834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22241172 + ... + 22261372.

Almost surely, 2^449497945672 is an apocalyptic number.

It is an amenable number.

449497945672 is a deficient number, since it is larger than the sum of its proper divisors (394415149808).

449497945672 is a wasteful number, since it uses less digits than its factorization.

449497945672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23713 (or 23709 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 70.

The spelling of 449497945672 in words is "four hundred forty-nine billion, four hundred ninety-seven million, nine hundred forty-five thousand, six hundred seventy-two".