264529670393 has 2 divisors, whose sum is σ = 264529670394. Its totient is φ = 264529670392.

The previous prime is 264529670369. The next prime is 264529670401. The reversal of 264529670393 is 393076925462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217419836089 + 47109834304 = 466283^2 + 217048^2 .

It is a cyclic number.

It is not a de Polignac number, because 264529670393 - 2⁶ = 264529670329 is a prime.

It is not a weakly prime, because it can be changed into another prime (264529670323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132264835196 + 132264835197.

It is an arithmetic number, because the mean of its divisors is an integer number (132264835197).

Almost surely, 2^264529670393 is an apocalyptic number.

It is an amenable number.

264529670393 is a deficient number, since it is larger than the sum of its proper divisors (1).

264529670393 is an equidigital number, since it uses as much as digits as its factorization.

264529670393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 56.

The spelling of 264529670393 in words is "two hundred sixty-four billion, five hundred twenty-nine million, six hundred seventy thousand, three hundred ninety-three".