445365776640 has 72 divisors (see below), whose sum is σ = 1422386961408. Its totient is φ = 118764206080.

The previous prime is 445365776593. The next prime is 445365776659. The reversal of 445365776640 is 46677563544.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 57986496 + ... + 57994175.

It is an arithmetic number, because the mean of its divisors is an integer number (19755374464).

Almost surely, 2^445365776640 is an apocalyptic number.

445365776640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

445365776640 is an abundant number, since it is smaller than the sum of its proper divisors (977021184768).

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

445365776640 is a wasteful number, since it uses less digits than its factorization.

445365776640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115980695 (or 115980681 counting only the distinct ones).

The product of its (nonzero) digits is 50803200, while the sum is 57.

The spelling of 445365776640 in words is "four hundred forty-five billion, three hundred sixty-five million, seven hundred seventy-six thousand, six hundred forty".