264331603231309 has 2 divisors, whose sum is σ = 264331603231310. Its totient is φ = 264331603231308.

The previous prime is 264331603231259. The next prime is 264331603231313. The reversal of 264331603231309 is 903132306133462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145051239613284 + 119280363618025 = 12043722^2 + 10921555^2 .

It is a cyclic number.

It is not a de Polignac number, because 264331603231309 - 2⁷ = 264331603231181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264331603231369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132165801615654 + 132165801615655.

It is an arithmetic number, because the mean of its divisors is an integer number (132165801615655).

Almost surely, 2^{264331603231309} is an apocalyptic number.

It is an amenable number.

264331603231309 is a deficient number, since it is larger than the sum of its proper divisors (1).

264331603231309 is an equidigital number, since it uses as much as digits as its factorization.

264331603231309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 46.

The spelling of 264331603231309 in words is "two hundred sixty-four trillion, three hundred thirty-one billion, six hundred three million, two hundred thirty-one thousand, three hundred nine".