648000202273 has 2 divisors, whose sum is σ = 648000202274. Its totient is φ = 648000202272.

The previous prime is 648000202189. The next prime is 648000202313. The reversal of 648000202273 is 372202000846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572711427729 + 75288774544 = 756777^2 + 274388^2 .

It is a cyclic number.

It is not a de Polignac number, because 648000202273 - 2²¹ = 647998105121 is a prime.

It is not a weakly prime, because it can be changed into another prime (648000203273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324000101136 + 324000101137.

It is an arithmetic number, because the mean of its divisors is an integer number (324000101137).

Almost surely, 2^648000202273 is an apocalyptic number.

It is an amenable number.

648000202273 is a deficient number, since it is larger than the sum of its proper divisors (1).

648000202273 is an equidigital number, since it uses as much as digits as its factorization.

648000202273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 648000202273 in words is "six hundred forty-eight billion, two hundred two thousand, two hundred seventy-three".