73583223421 has 2 divisors, whose sum is σ = 73583223422. Its totient is φ = 73583223420.

The previous prime is 73583223403. The next prime is 73583223431. The reversal of 73583223421 is 12432238537.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73273076100 + 310147321 = 270690^2 + 17611^2 .

It is a cyclic number.

It is not a de Polignac number, because 73583223421 - 2¹¹ = 73583221373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73583223431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36791611710 + 36791611711.

It is an arithmetic number, because the mean of its divisors is an integer number (36791611711).

Almost surely, 2^73583223421 is an apocalyptic number.

It is an amenable number.

73583223421 is a deficient number, since it is larger than the sum of its proper divisors (1).

73583223421 is an equidigital number, since it uses as much as digits as its factorization.

73583223421 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 73583223421 in words is "seventy-three billion, five hundred eighty-three million, two hundred twenty-three thousand, four hundred twenty-one".