942221603761 has 9 divisors (see below), whose sum is σ = 955377408321. Its totient is φ = 929244569472.

The previous prime is 942221603747. The next prime is 942221603779. The reversal of 942221603761 is 167306122249.

The square root of 942221603761 is 970681.

It is a perfect power (a square), and thus also a powerful number.

942221603761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 350737557361 + 591484046400 = 592231^2 + 769080^2 .

It is not a de Polignac number, because 942221603761 - 2¹⁹ = 942221079473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (942222603761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70853065 + ... + 70866361.

It is an arithmetic number, because the mean of its divisors is an integer number (106153045369).

Almost surely, 2^942221603761 is an apocalyptic number.

942221603761 is the 970681-st square number.

942221603761 is the 485341-st centered octagonal number.

It is an amenable number.

942221603761 is a deficient number, since it is larger than the sum of its proper divisors (13155804560).

942221603761 is an frugal number, since it uses more digits than its factorization.

942221603761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26740 (or 13370 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 942221603761 in words is "nine hundred forty-two billion, two hundred twenty-one million, six hundred three thousand, seven hundred sixty-one".