2989495361 has 6 divisors (see below), whose sum is σ = 3062768562. Its totient is φ = 2916239280.

The previous prime is 2989495351. The next prime is 2989495391. The reversal of 2989495361 is 1635949892.

It can be written as a sum of positive squares in only one way, i.e., 1822863025 + 1166632336 = 42695^2 + 34156^2 .

It is not a de Polignac number, because 2989495361 - 2⁶ = 2989495297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2989495297 and 2989495306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989495331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 345830 + ... + 354368.

It is an arithmetic number, because the mean of its divisors is an integer number (510461427).

Almost surely, 2^2989495361 is an apocalyptic number.

It is an amenable number.

2989495361 is a deficient number, since it is larger than the sum of its proper divisors (73273201).

2989495361 is an frugal number, since it uses more digits than its factorization.

2989495361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17119 (or 8580 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 56.

The square root of 2989495361 is about 54676.2778634391. The cubic root of 2989495361 is about 1440.5642337812.

The spelling of 2989495361 in words is "two billion, nine hundred eighty-nine million, four hundred ninety-five thousand, three hundred sixty-one".