2180151871 has 2 divisors, whose sum is σ = 2180151872. Its totient is φ = 2180151870.

The previous prime is 2180151839. The next prime is 2180151881. The reversal of 2180151871 is 1781510812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2180151871 - 2⁵ = 2180151839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180151881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090075935 + 1090075936.

It is an arithmetic number, because the mean of its divisors is an integer number (1090075936).

Almost surely, 2^2180151871 is an apocalyptic number.

2180151871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180151871 is an equidigital number, since it uses as much as digits as its factorization.

2180151871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 34.

The square root of 2180151871 is about 46692.0964511126. The cubic root of 2180151871 is about 1296.6683666341.

The spelling of 2180151871 in words is "two billion, one hundred eighty million, one hundred fifty-one thousand, eight hundred seventy-one".