97129221329 has 16 divisors (see below), whose sum is σ = 115856179200. Its totient is φ = 79616668560.

The previous prime is 97129221289. The next prime is 97129221361. The reversal of 97129221329 is 92312292179.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 97129221329 - 2²⁸ = 96860785873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97129221229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 709784 + ... + 835494.

It is an arithmetic number, because the mean of its divisors is an integer number (7241011200).

Almost surely, 2^97129221329 is an apocalyptic number.

It is an amenable number.

97129221329 is a deficient number, since it is larger than the sum of its proper divisors (18726957871).

97129221329 is a wasteful number, since it uses less digits than its factorization.

97129221329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130540.

The product of its digits is 244944, while the sum is 47.

The spelling of 97129221329 in words is "ninety-seven billion, one hundred twenty-nine million, two hundred twenty-one thousand, three hundred twenty-nine".