6940173589 has 4 divisors (see below), whose sum is σ = 6940372140. Its totient is φ = 6939975040.

The previous prime is 6940173547. The next prime is 6940173593. The reversal of 6940173589 is 9853710496.

It is a happy number.

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 2509008100 + 4431165489 = 50090^2 + 66567^2 .

It is a cyclic number.

It is not a de Polignac number, because 6940173589 - 2¹⁵ = 6940140821 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 (6940176589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31354 + ... + 121915.

It is an arithmetic number, because the mean of its divisors is an integer number (1735093035).

Almost surely, 2^6940173589 is an apocalyptic number.

It is an amenable number.

6940173589 is a deficient number, since it is larger than the sum of its proper divisors (198551).

6940173589 is a wasteful number, since it uses less digits than its factorization.

6940173589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198550.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 6940173589 is about 83307.7042595701. The cubic root of 6940173589 is about 1907.4658779919.

The spelling of 6940173589 in words is "six billion, nine hundred forty million, one hundred seventy-three thousand, five hundred eighty-nine".