264504112744591 has 2 divisors, whose sum is σ = 264504112744592. Its totient is φ = 264504112744590.

The previous prime is 264504112744589. The next prime is 264504112744661. The reversal of 264504112744591 is 195447211405462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264504112744591 - 2¹ = 264504112744589 is a prime.

Together with 264504112744589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264504112744541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132252056372295 + 132252056372296.

It is an arithmetic number, because the mean of its divisors is an integer number (132252056372296).

Almost surely, 2^{264504112744591} is an apocalyptic number.

264504112744591 is a deficient number, since it is larger than the sum of its proper divisors (1).

264504112744591 is an equidigital number, since it uses as much as digits as its factorization.

264504112744591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 264504112744591 in words is "two hundred sixty-four trillion, five hundred four billion, one hundred twelve million, seven hundred forty-four thousand, five hundred ninety-one".