445266132921 has 24 divisors (see below), whose sum is σ = 662157088736. Its totient is φ = 288161919360.

The previous prime is 445266132919. The next prime is 445266132929. The reversal of 445266132921 is 129231662544.

445266132921 is a `hidden beast` number, since 4 + 4 + 5 + 2 + 6 + 613 + 2 + 9 + 21 = 666.

It is not a de Polignac number, because 445266132921 - 2¹ = 445266132919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445266132929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3466240 + ... + 3592401.

Almost surely, 2^445266132921 is an apocalyptic number.

It is an amenable number.

445266132921 is a deficient number, since it is larger than the sum of its proper divisors (216890955815).

445266132921 is a wasteful number, since it uses less digits than its factorization.

445266132921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7058853 (or 7058850 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 445266132921 in words is "four hundred forty-five billion, two hundred sixty-six million, one hundred thirty-two thousand, nine hundred twenty-one".