73225439069 has 2 divisors, whose sum is σ = 73225439070. Its totient is φ = 73225439068.

The previous prime is 73225439029. The next prime is 73225439093. The reversal of 73225439069 is 96093452237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47966694169 + 25258744900 = 219013^2 + 158930^2 .

It is a cyclic number.

It is not a de Polignac number, because 73225439069 - 2¹² = 73225434973 is a prime.

It is a super-2 number, since 2×73225439069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73225439009) 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, 36612719534 + 36612719535.

It is an arithmetic number, because the mean of its divisors is an integer number (36612719535).

Almost surely, 2^73225439069 is an apocalyptic number.

It is an amenable number.

73225439069 is a deficient number, since it is larger than the sum of its proper divisors (1).

73225439069 is an equidigital number, since it uses as much as digits as its factorization.

73225439069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 73225439069 in words is "seventy-three billion, two hundred twenty-five million, four hundred thirty-nine thousand, sixty-nine".