2164477873 has 2 divisors, whose sum is σ = 2164477874. Its totient is φ = 2164477872.

The previous prime is 2164477811. The next prime is 2164477907. The reversal of 2164477873 is 3787744612.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2100205584 + 64272289 = 45828^2 + 8017^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164477873 - 2²¹ = 2162380721 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164477373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082238936 + 1082238937.

It is an arithmetic number, because the mean of its divisors is an integer number (1082238937).

Almost surely, 2^2164477873 is an apocalyptic number.

It is an amenable number.

2164477873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164477873 is an equidigital number, since it uses as much as digits as its factorization.

2164477873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 49.

The square root of 2164477873 is about 46523.9494561672. The cubic root of 2164477873 is about 1293.5534645779.

The spelling of 2164477873 in words is "two billion, one hundred sixty-four million, four hundred seventy-seven thousand, eight hundred seventy-three".