97729788369 has 16 divisors (see below), whose sum is σ = 132600888000. Its totient is φ = 64007372736.

The previous prime is 97729788337. The next prime is 97729788371. The reversal of 97729788369 is 96388792779.

It is not a de Polignac number, because 97729788369 - 2⁵ = 97729788337 is a prime.

It is a super-2 number, since 2×97729788369² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97729788369.

It is not an unprimeable number, because it can be changed into a prime (97729786369) 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 in 15 ways as a sum of consecutive naturals, for example, 95947 + ... + 452399.

It is an arithmetic number, because the mean of its divisors is an integer number (8287555500).

Almost surely, 2^97729788369 is an apocalyptic number.

It is an amenable number.

97729788369 is a deficient number, since it is larger than the sum of its proper divisors (34871099631).

97729788369 is a wasteful number, since it uses less digits than its factorization.

97729788369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358064.

The product of its digits is 576108288, while the sum is 75.

The spelling of 97729788369 in words is "ninety-seven billion, seven hundred twenty-nine million, seven hundred eighty-eight thousand, three hundred sixty-nine".