264129564889 has 2 divisors, whose sum is σ = 264129564890. Its totient is φ = 264129564888.

The previous prime is 264129564823. The next prime is 264129564901. The reversal of 264129564889 is 988465921462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162038451600 + 102091113289 = 402540^2 + 319517^2 .

It is a cyclic number.

It is not a de Polignac number, because 264129564889 - 2¹⁹ = 264129040601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264129564889.

It is not a weakly prime, because it can be changed into another prime (264129664889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132064782444 + 132064782445.

It is an arithmetic number, because the mean of its divisors is an integer number (132064782445).

Almost surely, 2^264129564889 is an apocalyptic number.

It is an amenable number.

264129564889 is a deficient number, since it is larger than the sum of its proper divisors (1).

264129564889 is an equidigital number, since it uses as much as digits as its factorization.

264129564889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59719680, while the sum is 64.

The spelling of 264129564889 in words is "two hundred sixty-four billion, one hundred twenty-nine million, five hundred sixty-four thousand, eight hundred eighty-nine".