444625326401 has 4 divisors (see below), whose sum is σ = 444629014704. Its totient is φ = 444621638100.

The previous prime is 444625326389. The next prime is 444625326407. The reversal of 444625326401 is 104623526444.

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 a de Polignac number, because none of the positive numbers 2^k-444625326401 is a prime.

It is a super-2 number, since 2×444625326401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444625326407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656995 + ... + 1906536.

It is an arithmetic number, because the mean of its divisors is an integer number (111157253676).

Almost surely, 2^444625326401 is an apocalyptic number.

It is an amenable number.

444625326401 is a deficient number, since it is larger than the sum of its proper divisors (3688303).

444625326401 is a wasteful number, since it uses less digits than its factorization.

444625326401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688302.

The product of its (nonzero) digits is 552960, while the sum is 41.

The spelling of 444625326401 in words is "four hundred forty-four billion, six hundred twenty-five million, three hundred twenty-six thousand, four hundred one".