27664300633 has 2 divisors, whose sum is σ = 27664300634. Its totient is φ = 27664300632.

The previous prime is 27664300621. The next prime is 27664300649. The reversal of 27664300633 is 33600346672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27043144704 + 621155929 = 164448^2 + 24923^2 .

It is a cyclic number.

It is not a de Polignac number, because 27664300633 - 2⁹ = 27664300121 is a prime.

It is not a weakly prime, because it can be changed into another prime (27664300133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832150316 + 13832150317.

It is an arithmetic number, because the mean of its divisors is an integer number (13832150317).

Almost surely, 2^27664300633 is an apocalyptic number.

It is an amenable number.

27664300633 is a deficient number, since it is larger than the sum of its proper divisors (1).

27664300633 is an equidigital number, since it uses as much as digits as its factorization.

27664300633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 40.

The spelling of 27664300633 in words is "twenty-seven billion, six hundred sixty-four million, three hundred thousand, six hundred thirty-three".