444274820617 has 4 divisors (see below), whose sum is σ = 444286959940. Its totient is φ = 444262681296.

The previous prime is 444274820611. The next prime is 444274820621. The reversal of 444274820617 is 716028472444.

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

It can be written as a sum of positive squares in 2 ways, for example, as 136039994896 + 308234825721 = 368836^2 + 555189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444274820617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444274820611) 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, 6014598 + ... + 6088015.

It is an arithmetic number, because the mean of its divisors is an integer number (111071739985).

Almost surely, 2^444274820617 is an apocalyptic number.

It is an amenable number.

444274820617 is a deficient number, since it is larger than the sum of its proper divisors (12139323).

444274820617 is a wasteful number, since it uses less digits than its factorization.

444274820617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139322.

The product of its (nonzero) digits is 2408448, while the sum is 49.

The spelling of 444274820617 in words is "four hundred forty-four billion, two hundred seventy-four million, eight hundred twenty thousand, six hundred seventeen".