64583020273 has 2 divisors, whose sum is σ = 64583020274. Its totient is φ = 64583020272.

The previous prime is 64583020241. The next prime is 64583020331. The reversal of 64583020273 is 37202038546.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51054306304 + 13528713969 = 225952^2 + 116313^2 .

It is a cyclic number.

It is not a de Polignac number, because 64583020273 - 2⁵ = 64583020241 is a prime.

It is not a weakly prime, because it can be changed into another prime (64583027273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32291510136 + 32291510137.

It is an arithmetic number, because the mean of its divisors is an integer number (32291510137).

Almost surely, 2^64583020273 is an apocalyptic number.

It is an amenable number.

64583020273 is a deficient number, since it is larger than the sum of its proper divisors (1).

64583020273 is an equidigital number, since it uses as much as digits as its factorization.

64583020273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 64583020273 in words is "sixty-four billion, five hundred eighty-three million, twenty thousand, two hundred seventy-three".