445346920688 has 20 divisors (see below), whose sum is σ = 862882290600. Its totient is φ = 222667619904.

The previous prime is 445346920673. The next prime is 445346920721. The reversal of 445346920688 is 886029643544.

It is a happy number.

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, 300863 + ... + 990561.

It is an arithmetic number, because the mean of its divisors is an integer number (43144114530).

Almost surely, 2^445346920688 is an apocalyptic number.

It is an amenable number.

445346920688 is a deficient number, since it is larger than the sum of its proper divisors (417535369912).

445346920688 is a wasteful number, since it uses less digits than its factorization.

445346920688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730064 (or 730058 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 59.

The spelling of 445346920688 in words is "four hundred forty-five billion, three hundred forty-six million, nine hundred twenty thousand, six hundred eighty-eight".