729969669497 has 2 divisors, whose sum is σ = 729969669498. Its totient is φ = 729969669496.

The previous prime is 729969669479. The next prime is 729969669503. The reversal of 729969669497 is 794966969927.

Together with previous prime (729969669479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552422049001 + 177547620496 = 743251^2 + 421364^2 .

It is a cyclic number.

It is not a de Polignac number, because 729969669497 - 2⁸ = 729969669241 is a prime.

It is not a weakly prime, because it can be changed into another prime (729969669437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364984834748 + 364984834749.

It is an arithmetic number, because the mean of its divisors is an integer number (364984834749).

Almost surely, 2^729969669497 is an apocalyptic number.

It is an amenable number.

729969669497 is a deficient number, since it is larger than the sum of its proper divisors (1).

729969669497 is an equidigital number, since it uses as much as digits as its factorization.

729969669497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4999796928, while the sum is 83.

The spelling of 729969669497 in words is "seven hundred twenty-nine billion, nine hundred sixty-nine million, six hundred sixty-nine thousand, four hundred ninety-seven".