445014711723221 has 4 divisors (see below), whose sum is σ = 445016129340192. Its totient is φ = 445013294106252.

The previous prime is 445014711723167. The next prime is 445014711723289. The reversal of 445014711723221 is 122327117410544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445014711723221 - 2¹⁴ = 445014711706837 is a prime.

It is a super-2 number, since 2×445014711723221² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445014710723221) 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 3 ways as a sum of consecutive naturals, for example, 708337505 + ... + 708965478.

It is an arithmetic number, because the mean of its divisors is an integer number (111254032335048).

Almost surely, 2^{445014711723221} is an apocalyptic number.

It is an amenable number.

445014711723221 is a deficient number, since it is larger than the sum of its proper divisors (1417616971).

445014711723221 is a wasteful number, since it uses less digits than its factorization.

445014711723221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417616970.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 445014711723221 in words is "four hundred forty-five trillion, fourteen billion, seven hundred eleven million, seven hundred twenty-three thousand, two hundred twenty-one".