446461667649 has 24 divisors (see below), whose sum is σ = 665978257152. Its totient is φ = 287915902560.

The previous prime is 446461667627. The next prime is 446461667657. The reversal of 446461667649 is 946766164644.

446461667649 is a `hidden beast` number, since 4 + 4 + 6 + 4 + 616 + 6 + 7 + 6 + 4 + 9 = 666.

It is not a de Polignac number, because 446461667649 - 2²⁷ = 446327449921 is a prime.

It is a super-2 number, since 2×446461667649² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (446461667689) 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 23 ways as a sum of consecutive naturals, for example, 307954 + ... + 993860.

It is an arithmetic number, because the mean of its divisors is an integer number (27749094048).

Almost surely, 2^446461667649 is an apocalyptic number.

It is an amenable number.

446461667649 is a deficient number, since it is larger than the sum of its proper divisors (219516589503).

446461667649 is a wasteful number, since it uses less digits than its factorization.

446461667649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688277 (or 688274 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 63.

The spelling of 446461667649 in words is "four hundred forty-six billion, four hundred sixty-one million, six hundred sixty-seven thousand, six hundred forty-nine".