2180619899 has 2 divisors, whose sum is σ = 2180619900. Its totient is φ = 2180619898.

The previous prime is 2180619893. The next prime is 2180619919. The reversal of 2180619899 is 9989160812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2180619899 - 2²⁰ = 2179571323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2180619899.

It is not a weakly prime, because it can be changed into another prime (2180619893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090309949 + 1090309950.

It is an arithmetic number, because the mean of its divisors is an integer number (1090309950).

Almost surely, 2^2180619899 is an apocalyptic number.

2180619899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180619899 is an equidigital number, since it uses as much as digits as its factorization.

2180619899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 53.

The square root of 2180619899 is about 46697.1080367939. The cubic root of 2180619899 is about 1296.7611481949.

The spelling of 2180619899 in words is "two billion, one hundred eighty million, six hundred nineteen thousand, eight hundred ninety-nine".