73208991433 has 2 divisors, whose sum is σ = 73208991434. Its totient is φ = 73208991432.

The previous prime is 73208991419. The next prime is 73208991491. The reversal of 73208991433 is 33419980237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51889195264 + 21319796169 = 227792^2 + 146013^2 .

It is a cyclic number.

It is not a de Polignac number, because 73208991433 - 2¹³ = 73208983241 is a prime.

It is not a weakly prime, because it can be changed into another prime (73208991413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36604495716 + 36604495717.

It is an arithmetic number, because the mean of its divisors is an integer number (36604495717).

Almost surely, 2^73208991433 is an apocalyptic number.

It is an amenable number.

73208991433 is a deficient number, since it is larger than the sum of its proper divisors (1).

73208991433 is an equidigital number, since it uses as much as digits as its factorization.

73208991433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 73208991433 in words is "seventy-three billion, two hundred eight million, nine hundred ninety-one thousand, four hundred thirty-three".