445133856861 has 16 divisors (see below), whose sum is σ = 659518885120. Its totient is φ = 296728310880.

The previous prime is 445133856859. The next prime is 445133856883. The reversal of 445133856861 is 168658331544.

It is a happy number.

445133856861 is a `hidden beast` number, since 4 + 4 + 5 + 13 + 3 + 8 + 568 + 61 = 666.

It is not a de Polignac number, because 445133856861 - 2¹ = 445133856859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445133856798 and 445133856807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445133856061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468640 + ... + 1053513.

It is an arithmetic number, because the mean of its divisors is an integer number (41219930320).

Almost surely, 2^445133856861 is an apocalyptic number.

It is an amenable number.

445133856861 is a deficient number, since it is larger than the sum of its proper divisors (214385028259).

445133856861 is a wasteful number, since it uses less digits than its factorization.

445133856861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532993 (or 1532987 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 54.

The spelling of 445133856861 in words is "four hundred forty-five billion, one hundred thirty-three million, eight hundred fifty-six thousand, eight hundred sixty-one".