673125075365 has 8 divisors (see below), whose sum is σ = 827451312408. Its totient is φ = 525365912320.

The previous prime is 673125075349. The next prime is 673125075367. The reversal of 673125075365 is 563570521376.

It is a Cunningham number, because it is equal to 820442²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 673125075364 = 1^2 + 820442^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 673125075365 - 2⁴ = 673125075349 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 (673125075367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641768272 + ... + 1641768681.

It is an arithmetic number, because the mean of its divisors is an integer number (103431414051).

Almost surely, 2^673125075365 is an apocalyptic number.

It is an amenable number.

673125075365 is a deficient number, since it is larger than the sum of its proper divisors (154326237043).

673125075365 is a wasteful number, since it uses less digits than its factorization.

673125075365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283536999.

The product of its (nonzero) digits is 3969000, while the sum is 50.

The spelling of 673125075365 in words is "six hundred seventy-three billion, one hundred twenty-five million, seventy-five thousand, three hundred sixty-five".