445212333668 has 48 divisors (see below), whose sum is σ = 855079545600. Its totient is φ = 201993386496.

The previous prime is 445212333661. The next prime is 445212333697. The reversal of 445212333668 is 866333212544.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (445212333661) 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 15 ways as a sum of consecutive naturals, for example, 825443 + ... + 1253706.

It is an arithmetic number, because the mean of its divisors is an integer number (17814157200).

Almost surely, 2^445212333668 is an apocalyptic number.

It is an amenable number.

445212333668 is a deficient number, since it is larger than the sum of its proper divisors (409867211932).

445212333668 is a wasteful number, since it uses less digits than its factorization.

445212333668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079284 (or 2079282 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 47.

The spelling of 445212333668 in words is "four hundred forty-five billion, two hundred twelve million, three hundred thirty-three thousand, six hundred sixty-eight".