444243070631 has 4 divisors (see below), whose sum is σ = 444377652264. Its totient is φ = 444108489000.

The previous prime is 444243070603. The next prime is 444243070679. The reversal of 444243070631 is 136070342444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 444243070631 - 2²² = 444238876327 is a prime.

It is a super-2 number, since 2×444243070631² (a number of 24 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 (444243070331) 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, 67285865 + ... + 67292466.

It is an arithmetic number, because the mean of its divisors is an integer number (111094413066).

Almost surely, 2^444243070631 is an apocalyptic number.

444243070631 is a deficient number, since it is larger than the sum of its proper divisors (134581633).

444243070631 is a wasteful number, since it uses less digits than its factorization.

444243070631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134581632.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 444243070631 in words is "four hundred forty-four billion, two hundred forty-three million, seventy thousand, six hundred thirty-one".