2689122587 has 2 divisors, whose sum is σ = 2689122588. Its totient is φ = 2689122586.

The previous prime is 2689122581. The next prime is 2689122589. The reversal of 2689122587 is 7852219862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2689122587 - 2⁶ = 2689122523 is a prime.

Together with 2689122589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2689122581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1344561293 + 1344561294.

It is an arithmetic number, because the mean of its divisors is an integer number (1344561294).

Almost surely, 2^2689122587 is an apocalyptic number.

2689122587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2689122587 is an equidigital number, since it uses as much as digits as its factorization.

2689122587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 50.

The square root of 2689122587 is about 51856.7506405868. The cubic root of 2689122587 is about 1390.6041896626.

The spelling of 2689122587 in words is "two billion, six hundred eighty-nine million, one hundred twenty-two thousand, five hundred eighty-seven".