731437734089 has 2 divisors, whose sum is σ = 731437734090. Its totient is φ = 731437734088.

The previous prime is 731437734073. The next prime is 731437734149. The reversal of 731437734089 is 980437734137.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 551318130064 + 180119604025 = 742508^2 + 424405^2 .

It is a cyclic number.

It is not a de Polignac number, because 731437734089 - 2⁴ = 731437734073 is a prime.

It is not a weakly prime, because it can be changed into another prime (731437734289) 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, 365718867044 + 365718867045.

It is an arithmetic number, because the mean of its divisors is an integer number (365718867045).

Almost surely, 2^731437734089 is an apocalyptic number.

It is an amenable number.

731437734089 is a deficient number, since it is larger than the sum of its proper divisors (1).

731437734089 is an equidigital number, since it uses as much as digits as its factorization.

731437734089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 56.

The spelling of 731437734089 in words is "seven hundred thirty-one billion, four hundred thirty-seven million, seven hundred thirty-four thousand, eighty-nine".