2164360447 has 2 divisors, whose sum is σ = 2164360448. Its totient is φ = 2164360446.

The previous prime is 2164360427. The next prime is 2164360453. The reversal of 2164360447 is 7440634612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164360447 - 2³¹ = 16876799 is a prime.

It is a super-2 number, since 2×2164360447² = 9368912289076079618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164360427) 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, 1082180223 + 1082180224.

It is an arithmetic number, because the mean of its divisors is an integer number (1082180224).

Almost surely, 2^2164360447 is an apocalyptic number.

2164360447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164360447 is an equidigital number, since it uses as much as digits as its factorization.

2164360447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 2164360447 is about 46522.6874438698. The cubic root of 2164360447 is about 1293.5300717838.

The spelling of 2164360447 in words is "two billion, one hundred sixty-four million, three hundred sixty thousand, four hundred forty-seven".