939331194481 has 9 divisors (see below), whose sum is σ = 950866220811. Its totient is φ = 927934477512.

The previous prime is 939331194449. The next prime is 939331194509. The reversal of 939331194481 is 184491133939.

The square root of 939331194481 is 969191.

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

It can be written as a sum of positive squares in only one way, i.e., 802789120225 + 136542074256 = 895985^2 + 369516^2 .

It is not a de Polignac number, because 939331194481 - 2⁵ = 939331194449 is a prime.

It is a super-2 number, since 2×939331194481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939331194421) 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, 80437015 + ... + 80448691.

Almost surely, 2^939331194481 is an apocalyptic number.

939331194481 is the 969191-st square number.

939331194481 is the 484596-th centered octagonal number.

It is an amenable number.

939331194481 is a deficient number, since it is larger than the sum of its proper divisors (11535026330).

939331194481 is an frugal number, since it uses more digits than its factorization.

939331194481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23520 (or 11760 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 55.

The spelling of 939331194481 in words is "nine hundred thirty-nine billion, three hundred thirty-one million, one hundred ninety-four thousand, four hundred eighty-one".