939141789697 has 4 divisors (see below), whose sum is σ = 939143918596. Its totient is φ = 939139660800.

The previous prime is 939141789613. The next prime is 939141789709. The reversal of 939141789697 is 796987141939.

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 649702093681 + 289439696016 = 806041^2 + 537996^2 .

It is a cyclic number.

It is not a de Polignac number, because 939141789697 - 2¹⁹ = 939141265409 is a prime.

It is a super-3 number, since 3×939141789697³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939141789197) 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, 128304 + ... + 1376497.

It is an arithmetic number, because the mean of its divisors is an integer number (234785979649).

Almost surely, 2^939141789697 is an apocalyptic number.

It is an amenable number.

939141789697 is a deficient number, since it is larger than the sum of its proper divisors (2128899).

939141789697 is a wasteful number, since it uses less digits than its factorization.

939141789697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128898.

The product of its digits is 185177664, while the sum is 73.

The spelling of 939141789697 in words is "nine hundred thirty-nine billion, one hundred forty-one million, seven hundred eighty-nine thousand, six hundred ninety-seven".