1673475989641 has 9 divisors (see below), whose sum is σ = 1679245941909. Its totient is φ = 1667725808736.

The previous prime is 1673475989639. The next prime is 1673475989663. The reversal of 1673475989641 is 1469895743761.

It is a happy number.

The square root of 1673475989641 is 1293629.

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

It can be written as a sum of positive squares in 4 ways, for example, as 323557330041 + 1349918659600 = 568821^2 + 1161860^2 .

It is not a de Polignac number, because 1673475989641 - 2¹ = 1673475989639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673475989611) 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, 404903811 + ... + 404907943.

Almost surely, 2^{1673475989641} is an apocalyptic number.

1673475989641 is the 1293629-th square number.

1673475989641 is the 646815-th centered octagonal number.

It is an amenable number.

1673475989641 is a deficient number, since it is larger than the sum of its proper divisors (5769952268).

1673475989641 is an frugal number, since it uses more digits than its factorization.

1673475989641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8892 (or 4446 counting only the distinct ones).

The product of its digits is 274337280, while the sum is 70.

The spelling of 1673475989641 in words is "one trillion, six hundred seventy-three billion, four hundred seventy-five million, nine hundred eighty-nine thousand, six hundred forty-one".