73446462521 has 2 divisors, whose sum is σ = 73446462522. Its totient is φ = 73446462520.

The previous prime is 73446462497. The next prime is 73446462569. The reversal of 73446462521 is 12526464437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73435038121 + 11424400 = 270989^2 + 3380^2 .

It is an emirp because it is prime and its reverse (12526464437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73446462521 - 2¹⁰ = 73446461497 is a prime.

It is not a weakly prime, because it can be changed into another prime (73446462421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36723231260 + 36723231261.

It is an arithmetic number, because the mean of its divisors is an integer number (36723231261).

Almost surely, 2^73446462521 is an apocalyptic number.

It is an amenable number.

73446462521 is a deficient number, since it is larger than the sum of its proper divisors (1).

73446462521 is an equidigital number, since it uses as much as digits as its factorization.

73446462521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 44.

The spelling of 73446462521 in words is "seventy-three billion, four hundred forty-six million, four hundred sixty-two thousand, five hundred twenty-one".