445845992089 has 27 divisors (see below), whose sum is σ = 476279008959. Its totient is φ = 417296416320.

The previous prime is 445845992077. The next prime is 445845992153. The reversal of 445845992089 is 980299548544.

The square root of 445845992089 is 667717.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7856163225 + 437989828864 = 88635^2 + 661808^2 .

It is not a de Polignac number, because 445845992089 - 2⁷ = 445845991961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445845992069) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1433588244 + ... + 1433588554.

Almost surely, 2^445845992089 is an apocalyptic number.

445845992089 is the 667717-th square number.

445845992089 is the 333859-th centered octagonal number.

It is an amenable number.

445845992089 is a deficient number, since it is larger than the sum of its proper divisors (30433016870).

445845992089 is an frugal number, since it uses more digits than its factorization.

445845992089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 149299200, while the sum is 67.

The spelling of 445845992089 in words is "four hundred forty-five billion, eight hundred forty-five million, nine hundred ninety-two thousand, eighty-nine".