73534281773 has 2 divisors, whose sum is σ = 73534281774. Its totient is φ = 73534281772.

The previous prime is 73534281761. The next prime is 73534281797. The reversal of 73534281773 is 37718243537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63828485449 + 9705796324 = 252643^2 + 98518^2 .

It is a cyclic number.

It is not a de Polignac number, because 73534281773 - 2¹⁰ = 73534280749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73534284773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36767140886 + 36767140887.

It is an arithmetic number, because the mean of its divisors is an integer number (36767140887).

Almost surely, 2^73534281773 is an apocalyptic number.

It is an amenable number.

73534281773 is a deficient number, since it is larger than the sum of its proper divisors (1).

73534281773 is an equidigital number, since it uses as much as digits as its factorization.

73534281773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2963520, while the sum is 50.

The spelling of 73534281773 in words is "seventy-three billion, five hundred thirty-four million, two hundred eighty-one thousand, seven hundred seventy-three".