2351281871 has 2 divisors, whose sum is σ = 2351281872. Its totient is φ = 2351281870.

The previous prime is 2351281861. The next prime is 2351281873. The reversal of 2351281871 is 1781821532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2351281871 - 2²⁶ = 2284173007 is a prime.

It is a Sophie Germain prime.

Together with 2351281873, 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 (2351281873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1175640935 + 1175640936.

It is an arithmetic number, because the mean of its divisors is an integer number (1175640936).

Almost surely, 2^2351281871 is an apocalyptic number.

2351281871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2351281871 is an equidigital number, since it uses as much as digits as its factorization.

2351281871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 38.

The square root of 2351281871 is about 48490.0182614938. The cubic root of 2351281871 is about 1329.7445890535.

The spelling of 2351281871 in words is "two billion, three hundred fifty-one million, two hundred eighty-one thousand, eight hundred seventy-one".