73534242889 has 2 divisors, whose sum is σ = 73534242890. Its totient is φ = 73534242888.

The previous prime is 73534242877. The next prime is 73534242919. The reversal of 73534242889 is 98824243537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58721405625 + 14812837264 = 242325^2 + 121708^2 .

It is a cyclic number.

It is not a de Polignac number, because 73534242889 - 2²¹ = 73532145737 is a prime.

It is not a weakly prime, because it can be changed into another prime (73534242869) 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, 36767121444 + 36767121445.

It is an arithmetic number, because the mean of its divisors is an integer number (36767121445).

Almost surely, 2^73534242889 is an apocalyptic number.

It is an amenable number.

73534242889 is a deficient number, since it is larger than the sum of its proper divisors (1).

73534242889 is an equidigital number, since it uses as much as digits as its factorization.

73534242889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11612160, while the sum is 55.

The spelling of 73534242889 in words is "seventy-three billion, five hundred thirty-four million, two hundred forty-two thousand, eight hundred eighty-nine".