264643203127 has 2 divisors, whose sum is σ = 264643203128. Its totient is φ = 264643203126.

The previous prime is 264643203073. The next prime is 264643203157. The reversal of 264643203127 is 721302346462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264643203127 - 2¹¹ = 264643201079 is a prime.

It is a super-2 number, since 2×264643203127² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264643203127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264643203157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132321601563 + 132321601564.

It is an arithmetic number, because the mean of its divisors is an integer number (132321601564).

Almost surely, 2^264643203127 is an apocalyptic number.

264643203127 is a deficient number, since it is larger than the sum of its proper divisors (1).

264643203127 is an equidigital number, since it uses as much as digits as its factorization.

264643203127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 40.

Adding to 264643203127 its reverse (721302346462), we get a palindrome (985945549589).

The spelling of 264643203127 in words is "two hundred sixty-four billion, six hundred forty-three million, two hundred three thousand, one hundred twenty-seven".