2688042671 has 2 divisors, whose sum is σ = 2688042672. Its totient is φ = 2688042670.

The previous prime is 2688042667. The next prime is 2688042673. The reversal of 2688042671 is 1762408862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2688042671 - 2² = 2688042667 is a prime.

It is a super-2 number, since 2×2688042671² = 14451146802233628482, which contains 22 as substring.

Together with 2688042673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2688042673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344021335 + 1344021336.

It is an arithmetic number, because the mean of its divisors is an integer number (1344021336).

Almost surely, 2^2688042671 is an apocalyptic number.

2688042671 is a deficient number, since it is larger than the sum of its proper divisors (1).

2688042671 is an equidigital number, since it uses as much as digits as its factorization.

2688042671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 2688042671 is about 51846.3371030201. The cubic root of 2688042671 is about 1390.4180153330.

The spelling of 2688042671 in words is "two billion, six hundred eighty-eight million, forty-two thousand, six hundred seventy-one".