97129221186 has 8 divisors (see below), whose sum is σ = 194258442384. Its totient is φ = 32376407060.

The previous prime is 97129221151. The next prime is 97129221197. The reversal of 97129221186 is 68112292179.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

97129221186 is an admirable number.

It is a super-2 number, since 2×97129221186² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8094101760 + ... + 8094101771.

It is an arithmetic number, because the mean of its divisors is an integer number (24282305298).

Almost surely, 2^97129221186 is an apocalyptic number.

97129221186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97129221186 is a wasteful number, since it uses less digits than its factorization.

97129221186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16188203536.

The product of its digits is 217728, while the sum is 48.

The spelling of 97129221186 in words is "ninety-seven billion, one hundred twenty-nine million, two hundred twenty-one thousand, one hundred eighty-six".