2889312445 has 8 divisors (see below), whose sum is σ = 3473025336. Its totient is φ = 2307549696.

The previous prime is 2889312421. The next prime is 2889312473. The reversal of 2889312445 is 5442139882.

It can be written as a sum of positive squares in 4 ways, for example, as 211353444 + 2677959001 = 14538^2 + 51749^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2889312445 - 2⁷ = 2889312317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2889312395 and 2889312404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484272 + ... + 490201.

It is an arithmetic number, because the mean of its divisors is an integer number (434128167).

Almost surely, 2^2889312445 is an apocalyptic number.

It is an amenable number.

2889312445 is a deficient number, since it is larger than the sum of its proper divisors (583712891).

2889312445 is an equidigital number, since it uses as much as digits as its factorization.

2889312445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975071.

The product of its digits is 552960, while the sum is 46.

The square root of 2889312445 is about 53752.3250194817. The cubic root of 2889312445 is about 1424.2891614221.

The spelling of 2889312445 in words is "two billion, eight hundred eighty-nine million, three hundred twelve thousand, four hundred forty-five".