64348482521 has 2 divisors, whose sum is σ = 64348482522. Its totient is φ = 64348482520.

The previous prime is 64348482511. The next prime is 64348482529. The reversal of 64348482521 is 12528484346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64343902921 + 4579600 = 253661^2 + 2140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64348482521 is a prime.

It is not a weakly prime, because it can be changed into another prime (64348482529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32174241260 + 32174241261.

It is an arithmetic number, because the mean of its divisors is an integer number (32174241261).

Almost surely, 2^64348482521 is an apocalyptic number.

It is an amenable number.

64348482521 is a deficient number, since it is larger than the sum of its proper divisors (1).

64348482521 is an equidigital number, since it uses as much as digits as its factorization.

64348482521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1474560, while the sum is 47.

The spelling of 64348482521 in words is "sixty-four billion, three hundred forty-eight million, four hundred eighty-two thousand, five hundred twenty-one".