729091389241 has 2 divisors, whose sum is σ = 729091389242. Its totient is φ = 729091389240.

The previous prime is 729091389193. The next prime is 729091389269. The reversal of 729091389241 is 142983190927.

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., 632018640016 + 97072749225 = 794996^2 + 311565^2 .

It is a cyclic number.

It is not a de Polignac number, because 729091389241 - 2¹⁵ = 729091356473 is a prime.

It is not a weakly prime, because it can be changed into another prime (729091381241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364545694620 + 364545694621.

It is an arithmetic number, because the mean of its divisors is an integer number (364545694621).

Almost surely, 2^729091389241 is an apocalyptic number.

It is an amenable number.

729091389241 is a deficient number, since it is larger than the sum of its proper divisors (1).

729091389241 is an equidigital number, since it uses as much as digits as its factorization.

729091389241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 729091389241 in words is "seven hundred twenty-nine billion, ninety-one million, three hundred eighty-nine thousand, two hundred forty-one".