97171203512 has 16 divisors (see below), whose sum is σ = 188073297600. Its totient is φ = 47018324160.

The previous prime is 97171203401. The next prime is 97171203517. The reversal of 97171203512 is 21530217179.

It is a super-2 number, since 2×97171203512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97171203517) 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 in 3 ways as a sum of consecutive naturals, for example, 195909437 + ... + 195909932.

It is an arithmetic number, because the mean of its divisors is an integer number (11754581100).

Almost surely, 2^97171203512 is an apocalyptic number.

It is an amenable number.

97171203512 is a deficient number, since it is larger than the sum of its proper divisors (90902094088).

97171203512 is a wasteful number, since it uses less digits than its factorization.

97171203512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391819406 (or 391819402 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 38.

The spelling of 97171203512 in words is "ninety-seven billion, one hundred seventy-one million, two hundred three thousand, five hundred twelve".