444420225653 has 4 divisors (see below), whose sum is σ = 444847965120. Its totient is φ = 443992486188.

The previous prime is 444420225649. The next prime is 444420225673. The reversal of 444420225653 is 356522024444.

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 444420225653 - 2² = 444420225649 is a prime.

It is a super-3 number, since 3×444420225653³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444420225653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444420225673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213868175 + ... + 213870252.

It is an arithmetic number, because the mean of its divisors is an integer number (111211991280).

Almost surely, 2^444420225653 is an apocalyptic number.

It is an amenable number.

444420225653 is a deficient number, since it is larger than the sum of its proper divisors (427739467).

444420225653 is a wasteful number, since it uses less digits than its factorization.

444420225653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427739466.

The product of its (nonzero) digits is 921600, while the sum is 41.

The spelling of 444420225653 in words is "four hundred forty-four billion, four hundred twenty million, two hundred twenty-five thousand, six hundred fifty-three".