72424383289 has 2 divisors, whose sum is σ = 72424383290. Its totient is φ = 72424383288.

The previous prime is 72424383259. The next prime is 72424383301. The reversal of 72424383289 is 98238342427.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71163565225 + 1260818064 = 266765^2 + 35508^2 .

It is a cyclic number.

It is not a de Polignac number, because 72424383289 - 2⁵ = 72424383257 is a prime.

It is not a weakly prime, because it can be changed into another prime (72424383259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36212191644 + 36212191645.

It is an arithmetic number, because the mean of its divisors is an integer number (36212191645).

Almost surely, 2^72424383289 is an apocalyptic number.

It is an amenable number.

72424383289 is a deficient number, since it is larger than the sum of its proper divisors (1).

72424383289 is an equidigital number, since it uses as much as digits as its factorization.

72424383289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 52.

The spelling of 72424383289 in words is "seventy-two billion, four hundred twenty-four million, three hundred eighty-three thousand, two hundred eighty-nine".