64453575973 has 2 divisors, whose sum is σ = 64453575974. Its totient is φ = 64453575972.

The previous prime is 64453575961. The next prime is 64453576009. The reversal of 64453575973 is 37957535446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41086479204 + 23367096769 = 202698^2 + 152863^2 .

It is a cyclic number.

It is not a de Polignac number, because 64453575973 - 2¹³ = 64453567781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64453572973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32226787986 + 32226787987.

It is an arithmetic number, because the mean of its divisors is an integer number (32226787987).

Almost surely, 2^64453575973 is an apocalyptic number.

It is an amenable number.

64453575973 is a deficient number, since it is larger than the sum of its proper divisors (1).

64453575973 is an equidigital number, since it uses as much as digits as its factorization.

64453575973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628000, while the sum is 58.

The spelling of 64453575973 in words is "sixty-four billion, four hundred fifty-three million, five hundred seventy-five thousand, nine hundred seventy-three".