264643204127 has 2 divisors, whose sum is σ = 264643204128. Its totient is φ = 264643204126.

The previous prime is 264643204109. The next prime is 264643204169. The reversal of 264643204127 is 721402346462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264643204127 - 2²⁰ = 264642155551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264643203127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132321602063 + 132321602064.

It is an arithmetic number, because the mean of its divisors is an integer number (132321602064).

Almost surely, 2^264643204127 is an apocalyptic number.

264643204127 is a deficient number, since it is larger than the sum of its proper divisors (1).

264643204127 is an equidigital number, since it uses as much as digits as its factorization.

264643204127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 264643204127 in words is "two hundred sixty-four billion, six hundred forty-three million, two hundred four thousand, one hundred twenty-seven".