944009968621 has 16 divisors (see below), whose sum is σ = 984975562368. Its totient is φ = 904013017600.

The previous prime is 944009968619. The next prime is 944009968631. The reversal of 944009968621 is 126869900449.

It is a cyclic number.

It is not a de Polignac number, because 944009968621 - 2¹ = 944009968619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (944009968631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53500 + ... + 1375093.

It is an arithmetic number, because the mean of its divisors is an integer number (61560972648).

Almost surely, 2^944009968621 is an apocalyptic number.

It is an amenable number.

944009968621 is a deficient number, since it is larger than the sum of its proper divisors (40965593747).

944009968621 is a wasteful number, since it uses less digits than its factorization.

944009968621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428932.

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 944009968621 in words is "nine hundred forty-four billion, nine million, nine hundred sixty-eight thousand, six hundred twenty-one".