445131384156 has 54 divisors (see below), whose sum is σ = 1195274487680. Its totient is φ = 139649058432.

The previous prime is 445131384151. The next prime is 445131384163. The reversal of 445131384156 is 651483131544.

It is a happy number.

445131384156 is a `hidden beast` number, since 4 + 4 + 513 + 1 + 3 + 84 + 1 + 56 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445131384151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21381916 + ... + 21402723.

Almost surely, 2^445131384156 is an apocalyptic number.

It is an amenable number.

445131384156 is an abundant number, since it is smaller than the sum of its proper divisors (750143103524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445131384156 is a wasteful number, since it uses less digits than its factorization.

445131384156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42784683 (or 42784661 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 445131384156 in words is "four hundred forty-five billion, one hundred thirty-one million, three hundred eighty-four thousand, one hundred fifty-six".