449364649632 has 48 divisors (see below), whose sum is σ = 1187394046272. Its totient is φ = 148796236800.

The previous prime is 449364649607. The next prime is 449364649633. The reversal of 449364649632 is 236946463944.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (449364649633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15485113 + ... + 15514104.

It is an arithmetic number, because the mean of its divisors is an integer number (24737375964).

Almost surely, 2^449364649632 is an apocalyptic number.

It is an amenable number.

449364649632 is an abundant number, since it is smaller than the sum of its proper divisors (738029396640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449364649632 is a wasteful number, since it uses less digits than its factorization.

449364649632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30999381 (or 30999373 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 60.

The spelling of 449364649632 in words is "four hundred forty-nine billion, three hundred sixty-four million, six hundred forty-nine thousand, six hundred thirty-two".