445037477985 has 32 divisors (see below), whose sum is σ = 793457873280. Its totient is φ = 236669281344.

The previous prime is 445037477977. The next prime is 445037478007. The reversal of 445037477985 is 589774730544.

445037477985 is a `hidden beast` number, since 4 + 4 + 50 + 37 + 477 + 9 + 85 = 666.

It is not a de Polignac number, because 445037477985 - 2³ = 445037477977 is a prime.

It is a super-2 number, since 2×445037477985² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4703262 + ... + 4796951.

It is an arithmetic number, because the mean of its divisors is an integer number (24795558540).

Almost surely, 2^445037477985 is an apocalyptic number.

445037477985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

445037477985 is a deficient number, since it is larger than the sum of its proper divisors (348420395295).

445037477985 is a wasteful number, since it uses less digits than its factorization.

445037477985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500574 (or 9500568 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 63.

The spelling of 445037477985 in words is "four hundred forty-five billion, thirty-seven million, four hundred seventy-seven thousand, nine hundred eighty-five".