73021428793 has 2 divisors, whose sum is σ = 73021428794. Its totient is φ = 73021428792.

The previous prime is 73021428769. The next prime is 73021428811. The reversal of 73021428793 is 39782412037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65519617024 + 7501811769 = 255968^2 + 86613^2 .

It is an emirp because it is prime and its reverse (39782412037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73021428793 - 2¹³ = 73021420601 is a prime.

It is not a weakly prime, because it can be changed into another prime (73021428593) 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, 36510714396 + 36510714397.

It is an arithmetic number, because the mean of its divisors is an integer number (36510714397).

Almost surely, 2^73021428793 is an apocalyptic number.

It is an amenable number.

73021428793 is a deficient number, since it is larger than the sum of its proper divisors (1).

73021428793 is an equidigital number, since it uses as much as digits as its factorization.

73021428793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 73021428793 in words is "seventy-three billion, twenty-one million, four hundred twenty-eight thousand, seven hundred ninety-three".