445535128789 has 8 divisors (see below), whose sum is σ = 451832281920. Its totient is φ = 439238587200.

The previous prime is 445535128777. The next prime is 445535128813. The reversal of 445535128789 is 987821535544.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 445535128789 - 2²⁷ = 445400911061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445535128289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429374 + ... + 1712944.

It is an arithmetic number, because the mean of its divisors is an integer number (56479035240).

Almost surely, 2^445535128789 is an apocalyptic number.

It is an amenable number.

445535128789 is a deficient number, since it is larger than the sum of its proper divisors (6297153131).

445535128789 is a wasteful number, since it uses less digits than its factorization.

445535128789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305771.

The product of its digits is 48384000, while the sum is 61.

The spelling of 445535128789 in words is "four hundred forty-five billion, five hundred thirty-five million, one hundred twenty-eight thousand, seven hundred eighty-nine".