2689040671 has 6 divisors (see below), whose sum is σ = 2856524480. Its totient is φ = 2530861536.

The previous prime is 2689040659. The next prime is 2689040681. The reversal of 2689040671 is 1760409862.

It is not a de Polignac number, because 2689040671 - 2¹¹ = 2689038623 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 (2689040621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4652031 + ... + 4652608.

Almost surely, 2^2689040671 is an apocalyptic number.

2689040671 is a deficient number, since it is larger than the sum of its proper divisors (167483809).

2689040671 is an equidigital number, since it uses as much as digits as its factorization.

2689040671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9304673 (or 9304656 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2689040671 is about 51855.9608049065. The cubic root of 2689040671 is about 1390.5900693333.

The spelling of 2689040671 in words is "two billion, six hundred eighty-nine million, forty thousand, six hundred seventy-one".