444517350722645 has 8 divisors (see below), whose sum is σ = 535403797898040. Its totient is φ = 354291895890880.

The previous prime is 444517350722623. The next prime is 444517350722659. The reversal of 444517350722645 is 546227053715444.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1050063375076 + 443467287347569 = 1024726^2 + 21058663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444517350722645 - 2³⁶ = 444448631245909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165248084426 + ... + 165248087115.

It is an arithmetic number, because the mean of its divisors is an integer number (66925474737255).

Almost surely, 2^{444517350722645} is an apocalyptic number.

It is an amenable number.

444517350722645 is a deficient number, since it is larger than the sum of its proper divisors (90886447175395).

444517350722645 is a wasteful number, since it uses less digits than its factorization.

444517350722645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330496171815.

The product of its (nonzero) digits is 112896000, while the sum is 59.

The spelling of 444517350722645 in words is "four hundred forty-four trillion, five hundred seventeen billion, three hundred fifty million, seven hundred twenty-two thousand, six hundred forty-five".