445872072213 has 48 divisors (see below), whose sum is σ = 658488742912. Its totient is φ = 290639664000.

The previous prime is 445872072209. The next prime is 445872072221. The reversal of 445872072213 is 312270278544.

445872072213 is a `hidden beast` number, since 44 + 587 + 2 + 0 + 7 + 2 + 21 + 3 = 666.

It is not a de Polignac number, because 445872072213 - 2² = 445872072209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445872072203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125915223 + ... + 125918763.

Almost surely, 2^445872072213 is an apocalyptic number.

It is an amenable number.

445872072213 is a deficient number, since it is larger than the sum of its proper divisors (212616670699).

445872072213 is a wasteful number, since it uses less digits than its factorization.

445872072213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906 (or 4903 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 445872072213 in words is "four hundred forty-five billion, eight hundred seventy-two million, seventy-two thousand, two hundred thirteen".