2687801329 has 2 divisors, whose sum is σ = 2687801330. Its totient is φ = 2687801328.

The previous prime is 2687801297. The next prime is 2687801341. The reversal of 2687801329 is 9231087862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2655856225 + 31945104 = 51535^2 + 5652^2 .

It is a cyclic number.

It is not a de Polignac number, because 2687801329 - 2⁵ = 2687801297 is a prime.

It is not a weakly prime, because it can be changed into another prime (2687801399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1343900664 + 1343900665.

It is an arithmetic number, because the mean of its divisors is an integer number (1343900665).

Almost surely, 2^2687801329 is an apocalyptic number.

It is an amenable number.

2687801329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2687801329 is an equidigital number, since it uses as much as digits as its factorization.

2687801329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 2687801329 is about 51844.0095768065. The cubic root of 2687801329 is about 1390.3764018681.

The spelling of 2687801329 in words is "two billion, six hundred eighty-seven million, eight hundred one thousand, three hundred twenty-nine".